Complete list of String Class Methods Apex in Salesforce

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On January 12, 2024, Posted by CRS Info Solutions , In Salesforce Apex Tutorial, With Comments Off

In Apex, a string can contain any number of characters with no character limit, as in any other programming language.

What is a String in Apex?

In Salesforce Apex, the String class is a fundamental data type that is used to represent and manipulate a sequence of characters. It provides a wide array of methods that allow developers to perform operations on text, such as concatenation, comparison, searching, trimming, and case conversion.
(En Salesforce Apex, la clase String es un tipo de dato fundamental que se utiliza para representar y manipular una secuencia de caracteres. Proporciona una amplia gama de métodos que permiten a los desarrolladores realizar operaciones sobre el texto, como concatenación, comparación, búsqueda, recorte y conversión de mayúsculas y minúsculas.)

Exploring string methods in salesforce apex

Strings are immutable in Apex, which means once a string is created, its value cannot be changed. Instead, any operation that seems to modify a string actually results in the creation of a new string. The String class is heavily utilized in Salesforce for handling and manipulating any text data, making it a crucial component in the development of Apex code for various applications within the Salesforce platform.

For example, String name = ‘test string name’;

In salesforce, string class provides various in-built methods.

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Here’s a list of commonly used string methods:

Contains(substring):

The contains method in Apex is used to check if a string contains a specific sequence of characters. It takes a single argument, which is the substring you want to search for within the main string.

The method returns a Boolean value: true if the substring is found within the main string,
and false if it is not.

For example,

if you have a string String myString = 'Hello, world!';
and you call myString.contains('world');,
the method will return true because the substring “world” is present in the main string “Hello, world!”.

This method is case-sensitive, meaning that myString.contains('World'); would return false.

String str=’Salesforce’;
String str1= 'force';
Boolean flag = str.contains(str1);
System.debug('flag::',+flag); // returns true

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Click here to discover the power of the `contains` method in Salesforce Apex with our detailed guide!

indexOf()

The indexOf method in Salesforce Apex is used to find the position of the first occurrence of a specified substring within a string. It returns the index of the first character of the first occurrence of the substring, or -1 if the substring is not found. The index is zero-based, meaning that the first character of the string is at index 0.

Here’s an example of how you can use the indexOf method in Apex:

String myString = 'Hello, world!';
Integer index = myString.indexOf('world');
System.debug(index); // Output: 7

In this code snippet:

myString is a string variable that contains the text ‘Hello, world!’.
indexOf is called on myString with the argument ‘world’. This means we are looking for the position of the substring ‘world’ within myString.
The result is stored in the integer variable index.
The System.debug statement is used to print the value of index to the debug log.

charAt()

The charAt method in Salesforce Apex is used to retrieve a specific character from a string based on its index. The index is zero-based, meaning that the first character of the string has an index of 0.

Checkout: Variables in Salesforce Apex

Here’s an example of how you can use the charAt method in Apex:

String myString = 'Hello, world!';
Char character = myString.charAt(7);
System.debug(character); // Output: w

In this code snippet:

myString is a string variable that contains the text ‘Hello, world!’.
charAt is called on myString with the argument 7. This means we are looking for the character at the 8th position in myString.
The result is stored in the character variable character.
The System.debug statement is used to print the value of character to the debug log.

equalsIgnoreCase()

The equalsIgnoreCase method in Salesforce Apex is used to compare two strings for equality, ignoring the case of the characters in the strings. This means that it checks if two strings are the same, regardless of whether the characters are uppercase or lowercase. It returns true if the strings are considered equal, ignoring case, and false otherwise.

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Here’s an example of how to use the equalsIgnoreCase method in Apex:

String stringOne = 'Hello, World!';
String stringTwo = 'hello, world!';
Boolean isEqual = stringOne.equalsIgnoreCase(stringTwo);
System.debug(isEqual); // Output: true

In this code snippet:

stringOne is a string variable that contains the text ‘Hello, World!’.
stringTwo is another string variable, containing the text ‘hello, world!’, which is the same as stringOne but in a different case.
The equalsIgnoreCase method is called on stringOne, with stringTwo passed as the argument. This checks if stringOne and stringTwo are equal, ignoring the case of the characters.
The result of the comparison is stored in the Boolean variable isEqual.
Finally, the System.debug statement prints the value of isEqual to the debug log.

startsWith()

The startsWith method in Salesforce Apex is used to check if a string starts with a specified prefix. It returns true if the string starts with the given prefix, and false otherwise.

Checkout: Data types in Salesforce Apex

Here’s an example of how to use the startsWith method in Apex:

String myString = 'Hello, world!';
Boolean startsWithHello = myString.startsWith('Hello');
Boolean startsWithWorld = myString.startsWith('world');
System.debug(startsWithHello); // Output: true
System.debug(startsWithWorld); // Output: false

In this code snippet:

myString is a string variable that contains the text ‘Hello, world!’.
The startsWith method is called on myString twice, first with the argument ‘Hello’ and then with ‘world’.
The results of these calls are stored in the Boolean variables startsWithHello and startsWithWorld, respectively.
The System.debug statements print the values of startsWithHello and startsWithWorld to the debug log.

isAlpha()

In Salesforce Apex, the isAlpha, isAlphaSpace, isAlphanumeric, and isAlphanumericSpace methods are not standard methods available on the String class. However, you can create utility methods to mimic their behavior. These methods are commonly used to check if a string contains only letters, only letters and spaces, only alphanumeric characters (letters and numbers), or only alphanumeric characters and spaces, respectively.

Here’s an example of how you can define and use these methods in Apex:

Readmore: Validation Rules in Salesforce

public class StringUtils {
    public static Boolean isAlpha(String str) {
        return str != null && str.matches('^[a-zA-Z]+$');
    }

    public static Boolean isAlphaSpace(String str) {
        return str != null && str.matches('^[a-zA-Z ]*$');
    }

    public static Boolean isAlphanumeric(String str) {
        return str != null && str.matches('^[a-zA-Z0-9]+$');
    }

    public static Boolean isAlphanumericSpace(String str) {
        return str != null && str.matches('^[a-zA-Z0-9 ]*$');
    }
}

String testString = 'Hello World123';
System.debug(StringUtils.isAlpha(testString)); // Output: false
System.debug(StringUtils.isAlphaSpace(testString)); // Output: true
System.debug(StringUtils.isAlphanumeric(testString)); // Output: false
System.debug(StringUtils.isAlphanumericSpace(testString)); // Output: true

In this code snippet:

The StringUtils class defines four static methods: isAlpha, isAlphaSpace, isAlphanumeric, and isAlphanumericSpace. Each method takes a string as input and uses a regular expression to check if the string matches the desired pattern.
isAlpha checks if the string contains only letters (a-z, A-Z).
isAlphaSpace checks if the string contains only letters and spaces.
isAlphanumeric checks if the string contains only alphanumeric characters (letters and numbers).
isAlphanumericSpace checks if the string contains only alphanumeric characters and spaces.
In the test code, testString is a sample string that contains letters, numbers, and spaces. The debug statements show the results of the checks for each method.

These utility methods can be useful for validating input strings in your Apex code to ensure they meet certain criteria.

isBlank

In Salesforce Apex, the isBlank and isNotBlank methods can be used to check if a string is empty or contains only whitespace, and if a string is not empty and contains more than just whitespace, respectively.

Here’s an example of how you can define and use these methods in Apex:

public class StringUtils {
    public static Boolean isBlank(String str) {
        return str == null || str.trim().isEmpty();
    }

    public static Boolean isNotBlank(String str) {
        return !isBlank(str);
    }
}

String emptyString = '  ';
String nonEmptyString = 'Hello, world!';

System.debug(StringUtils.isBlank(emptyString)); // Output: true
System.debug(StringUtils.isNotBlank(emptyString)); // Output: false
System.debug(StringUtils.isBlank(nonEmptyString)); // Output: false
System.debug(StringUtils.isNotBlank(nonEmptyString)); // Output: true

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In this code snippet:

The StringUtils class defines two static methods: isBlank and isNotBlank.
The isBlank method checks if the input string is null, empty, or contains only whitespace characters. It uses the trim() method to remove leading and trailing whitespace and then checks if the resulting string is empty.
The isNotBlank method simply returns the negation of the isBlank method, meaning it returns true if the string is not blank.
In the test code, emptyString is a string containing only spaces, and nonEmptyString is a non-empty string. The debug statements show the results of the checks for each method on both strings.

valueOf()

In Salesforce Apex, the valueOf method is used to convert different types of values into their string representation. This method is particularly useful when you need to convert non-string data types, such as integers or booleans, into strings.

Here’s an example of how you can use the valueOf method in Apex:

Integer myInteger = 123;
Boolean myBoolean = true;
Double myDouble = 123.45;

String integerString = String.valueOf(myInteger);
String booleanString = String.valueOf(myBoolean);
String doubleString = String.valueOf(myDouble);

System.debug(integerString); // Output: 123
System.debug(booleanString); // Output: true
System.debug(doubleString); // Output: 123.45

In this code snippet:

myInteger, myBoolean, and myDouble are variables of different data types (Integer, Boolean, and Double, respectively).
The String.valueOf method is called with each of these variables as arguments to convert them into their string representations.
The results are stored in integerString, booleanString, and doubleString, respectively.
The System.debug statements print the string representations of the original values to the debug log.

abbreviate (maxWidth):

The abbreviateString function in Salesforce Apex is designed to shorten a given string to a specified maximum length. If the original string is longer than this maximum length, the function will cut off the excess characters and add an ellipsis (“…”) to the end to indicate that the string has been abbreviated. For example, if the maximum length is set to 5, the string “Hello World” would be shortened to “Hello…”. This function is useful for situations where you need to display a shortened version of a long string, such as in user interfaces where space is limited.

String s = 'Hello Maximillian';
String s2 = s.abbreviate(8); 
System.debug(‘s2::::’+s2); // returns Hello...

capitalize():

The capitalize method in Apex is used to convert the first character of a string to uppercase while leaving the rest of the string unchanged. It does not take any arguments.

For example, if you have a string

String myString = 'hello, world!';

and you call myString.capitalize();,

the result will be 'Hello, world!'.

The first character ‘h’ is changed to uppercase ‘H’, while the rest of the string remains the same. This method is useful for formatting text where proper nouns or the beginnings of sentences need to be capitalized.

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String s = 'hello maximilian';
String s2 = s.capitalize();
System.assertEquals('Hello maximillian', s2);

The given code demonstrates the use of the capitalize() method in Apex to transform the first character of a string to uppercase. Initially, a string s is defined with the value 'hello maximilian'. The capitalize() method is then called on s, creating a new string s2 with the value 'Hello maximilian'. To ensure the transformation is correct, System.assertEquals('Hello maximilian', s2) is used to verify that s2 matches the expected output, confirming that the capitalize() method has functioned as intended.

Read more: Loops in Salesforce Apex

equals(stringOrId):

This function returns true if the passed-in object contains the same binary sequence of characters as the current string and is not null. This method is used to compare a string to an object that represents a string or ID.

The equals method in Apex is used to compare two strings for equality. It takes one argument, which is the string you want to compare with the original string.

The method returns a Boolean value: true if the two strings are exactly the same, and false if they are not.

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For example, if you have a string String myString = 'Hello, world!';
and you call myString.equals('Hello, world!');,
the method will return true because the two strings are identical.

However, myString.equals('hello, world!'); would return false because the method is case-sensitive, and the ‘H’ in the original string does not match the lowercase ‘h’ in the comparison string. This method is useful for checking if two strings contain exactly the same sequence of characters.

Below example is used to compare a string with an object containing a string.

Object obj1 = 'abc';
String str = 'abc';
Boolean result1 = str.equals(obj1);
System.assertEquals(true, result1);

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The given code snippet demonstrates the usage of the equals() method in Apex to compare a String object with another object for equality. Initially, an object obj1 is assigned the string value 'abc', and a String variable str is also assigned the value 'abc'. The equals() method is then called on the String variable str, comparing it with obj1. Since both contain the same string value, result1 is set to true. To validate this, System.assertEquals(true, result1) is used to confirm that result1 is indeed true, ensuring that the comparison correctly identifies the two as equal.

Collection is one of the important concept, checkout: Collections in Salesforce Apex

escape(stringToEscape):

This function returns a String with an escape character (/) added before any single quotation marks. This method is helpful for creating dynamic SOQL queries, which prevent SOQL injections. The escape method in Apex is used to encode a string by replacing HTML special characters with their corresponding HTML entity codes. This is useful for preventing cross-site scripting (XSS) attacks by ensuring that any HTML tags or special characters in the string are not interpreted as HTML or JavaScript when rendered in a web page.

For example,

if you have a string

String myString = '<script>alert("Hello, world!");
</script>';,

calling String escapedString = myString.escape();
will return a string where the <, >, and " characters are replaced with their HTML entity codes, making it safe to display in a web page without executing any potentially malicious code.

The escaped string would look like

<script>alert("Hello, world!");</script>.

String s = '\'Hello Jason\'';
system.debug(s); // Outputs 'Hello Jason'
String escapedStr = String.escape
SingleQuotes(s);// Outputs \'Hello Jason\'
system.debug(escapedStr); // Escapes the string \\\' to string \'
system.assertEquals('\\\'Hello Jason\\\'', escapedStr);

Readmore: Data Loader Management in Salesforce

remove(substring):

This function removes all occurrences of the specified substring and returns the SThe remove method in Apex is used to delete all occurrences of a specified substring from a string. It takes one argument, which is the substring you want to remove from the original string. The method returns a new string with all instances of the specified substring removed.

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For example,
if you have a string String myString = 'Hello, world!';
and you call myString.remove('world');,
the result will be 'Hello, !' because the substring “world” has been removed from the original string. If the specified substring is not found in the original string, the method returns the original string unchanged.

This method is useful for cleaning up strings by removing unwanted parts.

String s1 = 'Salesforce and force.com';
String s2 = s1.remove('force'); // returns 'Sales and .com'
System.assertEquals('Sales and .com', s2);

Readmore: Workflow rules in Salesforce

reverse():

The reverse method in Apex is used to reverse the order of characters in a string. It does not take any arguments. When you call this method on a string, it returns a new string with the characters in the opposite order.

For example,
if you have a string String myString = 'Hello, world!';
and you call myString.reverse();,
the result will be '!dlrow ,olleH'.
The last character of the original string becomes the first character of the new string, the second-to-last character becomes the second character, and so on, until the first character of the original string becomes the last character of the new string.

This method is useful for tasks such as checking for palindromes or creating mirror-image text.

String s =’salesforce’;
String s2 = s.reverse();
System.debug('s2::::'+s2);//returns ecrofselas

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trim():

The trim method in Apex is used to remove any leading and trailing whitespace characters from a string. It does not take any arguments. When you call this method on a string, it returns a new string with all the whitespace characters at the beginning and end of the original string removed.

Best Practices while using Strings in Apex programming

String Class Use Cases in Salesforce Apex are numerous and vital for the effective manipulation and handling of text data within the Salesforce environment. Developers commonly use the String class to format dynamic query strings, manipulate record data retrieved from the database, and dynamically generate HTML or JSON strings in web service calls. For instance, it’s often used to concatenate strings to create dynamic SOQL queries or to parse and construct JSON payloads in integration scenarios.

Readmore: Arrays in Salesforce Apex

When it comes to best practices, it’s important for developers to understand the immutable nature of strings in Apex. Since strings are immutable, every string manipulation results in the creation of a new string. This can have memory and performance implications, especially in loops or bulk operations. Hence, developers are advised to use the StringBuilder class for complex string manipulations, particularly in scenarios where a string is being altered repeatedly, such as in loops.

Real world examples of using different string methods

Let’s consider a real-world example where we have a Salesforce Apex class that processes customer feedback. This class receives feedback in the form of a string, performs various string manipulations to analyze the content, and then formats a response or action based on the feedback provided.

Strings methods used in User Registration

Let’s consider a scenario where we have a Salesforce Apex class that handles new user registration. This class receives user information, validates and processes the input data using various string methods, and then creates a new user record if all validations pass.

public class UserRegistrationHandler {

    public static void registerNewUser(String fullName, String email, String phoneNumber) {
        // Validate and process full name
        if (String.isBlank(fullName)) {
            System.debug('Full name is required.');
            return;
        }
        String processedName = fullName.trim();
        
        // Validate and process email
        if (String.isBlank(email) || !email.contains('@')) {
            System.debug('A valid email is required.');
            return;
        }
        String processedEmail = email.trim().toLowerCase();
        
        // Validate and process phone number
        if (String.isBlank(phoneNumber)) {
            System.debug('Phone number is required.');
            return;
        }
        // Remove any non-digit characters from phone number
        String processedPhoneNumber = phoneNumber.replaceAll('[^\\d]', '');

        // Creating a username by combining first part of the email and phone number
        String username = processedEmail.substring(0, processedEmail.indexOf('@')) + '_' + processedPhoneNumber.substring(processedPhoneNumber.length() - 4);
        
        // Create new user record (pseudo-code)
        createUserRecord(processedName, processedEmail, processedPhoneNumber, username);
        
        System.debug('New user registered: ' + username);
    }
    
    private static void createUserRecord(String name, String email, String phone, String username) {
        // Code to create a new user record in Salesforce
        // This is pseudo-code as actual user creation would involve DML operations
        System.debug('Creating user record for: ' + name);
    }
}

In this example, the registerNewUser method performs several operations using various String methods:

Validation and Trimming: It validates the full name, email, and phone number for being non-empty using String.isBlank() and removes any leading/trailing whitespace using trim().
Email Processing: It checks if the email is valid (basic check for ‘@’) and converts it to lower case to standardize it.
Phone Number Processing: It removes any non-digit characters from the phone number using replaceAll('[^\\d]', '') to ensure the phone number contains only digits.
Username Generation: It generates a username by combining the first part of the email (before the ‘@’) and the last four digits of the phone number.

Checkout: Interfaces – Salesforce Apex

String Manipulation

String userInput = '<Rating>Excellent</Rating>';
String extractionPattern = '<Rating>(.*?)</Rating>';
String extractedText = '';

Pattern compiledPattern = Pattern.compile(extractionPattern);
Matcher patternMatcher = compiledPattern.matcher(userInput);

if (patternMatcher.find()) {
    extractedText = patternMatcher.group(1);
}

System.debug('Extracted Rating: ' + extractedText);

String methods in Apex using Ternary Operator

Let’s create a simple Apex example where we use the ternary operator in conjunction with string methods. In this example, we’ll check if a user’s inputted email address is in a proper format. If it is, we’ll extract the domain part; if not, we’ll set a default error message using the ternary operator.

public class EmailProcessor {
    
    public static void processEmail(String email) {
        // Default error message
        String message = 'Invalid email format.';
        
        // Check if the email is not null and contains the '@' symbol
        String domain = (String.isNotBlank(email) && email.contains('@')) 
                        ? email.substring(email.indexOf('@') + 1) 
                        : message;

        // Output the result
        System.debug(domain);
    }
}

In this example:

We use the contains method to check if the email contains the ‘@’ symbol.
We use the substring and indexOf methods to extract the domain part of the email.
The ternary operator ?: is used to either set domain to the extracted domain from the email or to the default error message, based on the condition.
The String.isNotBlank method is used to ensure that the email is not null or empty.

Frequently Asked Questions

Can you explain how to compare two strings in Apex and discuss the significance of using `equals()` and `equalsIgnoreCase()` methods?

Comparing strings in Apex is a fundamental task and it’s important to choose the right method based on the specific requirements of your application. In Apex, you can use the equals() and equalsIgnoreCase() methods for this purpose.

The equals() method is used when you want to compare two strings for equality, considering case sensitivity. It returns true only if both strings contain the exact same sequence of characters and the same case. This is critical when case matters, for example, when you’re dealing with password validation or system-generated IDs where ‘ABC’ is different from ‘abc’.

Readmore: Decision Making in Salesforce Apex

On the other hand, the equalsIgnoreCase() method is used when you want to compare two strings for equality, but you don’t care about case sensitivity. It returns true if both strings are equal, ignoring the case of the characters. This is particularly useful in scenarios where you’re comparing user inputs, like email addresses or usernames, where the case shouldn’t alter the meaning or function.

Using these methods correctly is crucial for preventing bugs related to case sensitivity in your code. It’s also important for ensuring that your application behaves as expected, regardless of how users input data.

How would you handle and manipulate a large amount of text data in Apex, and what are the best practices for optimizing string operations to ensure performance efficiency?

Handling large amounts of text data in Apex requires careful consideration to ensure performance efficiency. When dealing with large strings, I make use of the StringBuilder class instead of traditional string concatenation. StringBuilder is much more efficient as it avoids creating multiple immutable string objects in memory.

For operations like parsing and manipulating large JSON or XML strings, I prefer to use native Apex parsers and serializers. These are optimized for performance and provide a more robust and error-resistant approach compared to manual string parsing.

When it comes to best practices, I always ensure to avoid unnecessary string creation. For instance, rather than using multiple String.format or concatenation operations, I consolidate them as much as possible. I also make extensive use of the bulkification concept, processing data in batches rather than one record at a time, to minimize CPU time and memory usage.

Lastly, I’m mindful of the governor limits in Salesforce. I ensure my string operations are efficient and I frequently check the execution context to prevent hitting limits, using methods like Limits.getCpuTime() to monitor the script’s consumption of CPU time, especially in loops or complex processing blocks. This way, I ensure not only the efficiency of string operations but also the overall performance and stability of the application.

Describe the immutability of strings in Apex and how it affects memory management, particularly in the context of concatenation and modification of string variables in loops.

In Apex, strings are immutable, meaning once a string is created, it cannot be changed. Each time you modify a string, a new string object is created in memory. This is crucial to understand for memory management, especially in the context of concatenation and modification in loops.

Due to this immutability, repeated string concatenation, especially within loops, can lead to significant memory usage and potentially hit governor limits. For example, if you concatenate strings inside a loop, each iteration creates a new string object, which can quickly consume a lot of heap space.

Read more: What is Apex?

To handle this efficiently, I use the StringBuilder class for concatenation in loops. StringBuilder doesn’t create a new string each time but instead modifies the existing string buffer. This greatly reduces the number of objects created and the overall memory footprint.

So, understanding the immutability of strings helps me write more efficient code by minimizing memory usage and being mindful of Salesforce’s governor limits. It’s about finding the right balance between functional code and performance-optimized code.

What is the difference between string and char?

In Apex, the main difference is that a string is a sequence of characters and can contain multiple characters, while a char represents a single character. Strings are used for texts of variable lengths like names or sentences. Chars are typically used for single character operations, like parsing. Understanding this difference is key for choosing the right data type based on the specific needs of your application, whether you’re handling a single character or a longer string of text.

Example program: Here’s a simple Apex code example demonstrating the use of a string and a char:

public class StringCharExample {
    public static void demonstrateStringChar() {
        // Example of a string
        String greeting = 'Hello, World!';

        // Example of a char - extracting the first character of the greeting
        char firstLetter = greeting.charAt(0);

        // Output the results
        System.debug('The greeting is: ' + greeting);
        System.debug('The first letter of the greeting is: ' + firstLetter);
    }
}

In this example:

greeting is a String variable that holds a sequence of characters.
firstLetter is a char variable. It’s assigned the first character of the greeting string using the charAt(0) method.
The System.debug statements are used to print out the values of the string and the char.

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You can read the previous article Salesforce Apex Variables and next one Salesforce Apex Arrays.

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Complete list of String Class Methods Apex in Salesforce

Table of Contents

What is a String in Apex?

Here’s a list of commonly used string methods:

Contains(substring):

Click here to discover the power of the `contains` method in Salesforce Apex with our detailed guide!

indexOf()

charAt()

equalsIgnoreCase()

startsWith()

isAlpha()

isBlank

valueOf()

abbreviate (maxWidth):

capitalize():

equals(stringOrId):

escape(stringToEscape):

remove(substring):

reverse():

trim():

Best Practices while using Strings in Apex programming

Real world examples of using different string methods

Strings methods used in User Registration

String Manipulation

String methods in Apex using Ternary Operator

Frequently Asked Questions

Can you explain how to compare two strings in Apex and discuss the significance of using `equals()` and `equalsIgnoreCase()` methods?

How would you handle and manipulate a large amount of text data in Apex, and what are the best practices for optimizing string operations to ensure performance efficiency?

Describe the immutability of strings in Apex and how it affects memory management, particularly in the context of concatenation and modification of string variables in loops.

What is the difference between string and char?

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Complete list of String Class Methods Apex in Salesforce

Table of Contents

What is a String in Apex?

Here’s a list of commonly used string methods:

Contains(substring):

Click here to discover the power of the contains method in Salesforce Apex with our detailed guide!

indexOf()

charAt()

equalsIgnoreCase()

startsWith()

isAlpha()

isBlank

valueOf()

abbreviate (maxWidth):

capitalize():

equals(stringOrId):

escape(stringToEscape):

remove(substring):

reverse():

trim():

Best Practices while using Strings in Apex programming

Real world examples of using different string methods

Strings methods used in User Registration

String Manipulation

String methods in Apex using Ternary Operator

Frequently Asked Questions

Can you explain how to compare two strings in Apex and discuss the significance of using equals() and equalsIgnoreCase() methods?

How would you handle and manipulate a large amount of text data in Apex, and what are the best practices for optimizing string operations to ensure performance efficiency?

Describe the immutability of strings in Apex and how it affects memory management, particularly in the context of concatenation and modification of string variables in loops.

What is the difference between string and char?

Learn Salesforce in Hyderabad: Elevate Your Career with Top Skills and Opportunities

Why Salesforce is a Key Skill to Learn in Hyderabad?

Why Choose CRS Info Solutions in Hyderabad?

Recent Posts

Latest Articles

Other Links

Useful Links

Recent Posts

Registration Form

Click here to discover the power of the `contains` method in Salesforce Apex with our detailed guide!

Can you explain how to compare two strings in Apex and discuss the significance of using `equals()` and `equalsIgnoreCase()` methods?