Java String getBytes() Method

June 7, 2023

What is String?

In Java, an string class is a series of characters that are interpreted literally by a script. An object called a string represents a string of characters. Java.lang is used. A string object is made using the String class.

Strings in Java are immutable, which means that once you create a string object, its value cannot be changed.

To know more about String Class in java read the complete article.

String Getbytes() Method:

The getBytes method of the Java programming language converts a string into a series of bytes and returns a byte array.

When this string cannot be encoded in the supplied charset, this method’s behaviour is undefined. When further control over the encoding process is necessary, the CharsetEncoder class should be utilised.

The java.lang.String class provides a lot of built-in methods that are used to manipulate string in Java.These methods help us to perform operations on String objects such as trimming, concatenating, converting, comparing, replacing strings etc.

The behavior of this method when this string cannot be encoded in the default charset is unspecified. The Charset Encoder class should be used when more control over the encoding process is required.

Returns The resultant byte array

Note: The encoding of the string into a series of bytes is performed by the Java String class's getBytes() function, which stores the result in an array of bytes.

String equalsignorecase()

Syntax:

public byte[] getBytes()

Let’s look at a string-related Java program where the Java String getbytes() method is used to perform an operation on the given string.

Examples : Java String Getbytes Method

Run

public class Main {
    public static void main(String[] args) {
        String str = "Hello World!";
        byte[] bytes = str.getBytes();
        for (byte b : bytes) {
            System.out.print(b + " ");
        }
    }
}

Output

72 101 108 108 111 32 87 111 114 108 100 33

Explanation: In this example, we first declare a string str and assign it the value "Hello World!". Then, we use the getBytes() method to convert the string into an array of bytes. Finally, we use a for-each loop to print out each byte in the array. The output of this program will be a sequence of integer values representing the ASCII codes of each character in the string. *

Examples 2 : Java String Getbytes Method

Run

public class Main{
    public static void main(String[] args) {
        String original = "Hello World!";
        byte[] bytes = original.getBytes();
        String converted = new String(bytes);
        System.out.println("Original string: " + original);
        System.out.println("Converted string: " + converted);
    }
}

Output

Original string: Hello World!
Converted string: Hello World!

Explanation: In this example, we first declare a string original and assign it the value "Hello World!". Then, we use the getBytes() method to convert the string into an array of bytes, which we store in the bytes array. Finally, we use the bytes array to create a new string converted using the String constructor.

Examples 3: Java String Getbytes Method

Run

import java.io.UnsupportedEncodingException;

public class Main {
    public static void main(String[] args) throws UnsupportedEncodingException {
        String original = "Hello World!";
        byte[] bytes = original.getBytes("UTF-16BE");
        String converted = new String(bytes, "UTF-16BE");
        System.out.println("Original string: " + original);
        System.out.println("Converted string: " + converted);
    }
}

Output

Original string: Hello World!
Converted string: Hello World!

Explanation: The code starts by importing the java.io.UnsupportedEncodingException class, which is thrown when an unsupported character encoding is specified. This exception is thrown in case the specified encoding is not supported by the system. The code then defines a class Main with a main method. The main method is the entry point of the program, and is where the code begins execution.

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Java String getBytes() Method

What is String?

String Getbytes() Method:

Syntax:

Let’s look at a string-related Java program where the Java String getbytes() method is used to perform an operation on the given string.

Examples : Java String Getbytes Method

Output

Examples 2 : Java String Getbytes Method

Output

Examples 3: Java String Getbytes Method

Output

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