String.getByte() Method in Java
In Java, getBytes() encodes a string into a sequence of bytes using the named character set and storing the result into a new byte array. This function can be implemented in two ways. Both ways are discussed below as follows:
- getBytes()
- getBytes(Charset charset)
Let us discuss and implement the first use case which is as follows:
Java String getBytes()
This function takes no arguments and used the default charset to encode the string into bytes. getbytes() function in Java is used to convert a string into a sequence of bytes and returns an array of bytes.
Syntax
public byte[] getBytes()
Example 1:
Java
import java.util.*;
public class GFG {
public static void main(String args[])
{
String gfg = "Geeks for Geeks" ;
System.out.println(
"The String before conversion is : " );
System.out.println(gfg);
byte [] b = gfg.getBytes();
System.out.println(
"The String after conversion is : " );
for ( int i = 0 ; i < b.length; i++) {
System.out.print(b[i]);
}
}
}
|
Output
The String before conversion is :
Geeks for Geeks
The String after conversion is :
71101101107115321021111143271101101107115
Java String getBytes(Charset charset)
Now let us implement and accept the charset according to which string has to be encoded while conversion into bytes. There are many charset defined and are discussed below.
Syntax
public byte[] getBytes(Charset charset);
- US-ASCII: Seven-bit ASCII, a.k.a. ISO646-US, a.k.a. the Basic Latin block of the Unicode character set
- ISO-8859-1: ISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1
- UTF-8: Eight-bit UCS Transformation Format
- UTF-16BE: Sixteen-bit UCS Transformation Format, big-endian byte order
- UTF-16LE: Sixteen-bit UCS Transformation Format, little-endian byte order
- UTF-16: Sixteen-bit UCS Transformation Format, byte order identified by an optional byte-order mark.
Example
Java
import java.io.*;
public class GFG {
public static void main(String args[])
{
String gfg = new String( "Geeks for Geeks" );
System.out.println(
"The String before conversion is : " );
System.out.println(gfg);
try {
byte [] b = gfg.getBytes( "UTF-16" );
System.out.println(
"The String after conversion into UTF-16 is : " );
for ( int i = 0 ; i < b.length; i++) {
System.out.print(b[i]);
}
System.out.print( "\n" );
byte [] c = gfg.getBytes( "UTF-16BE" );
System.out.println(
"The String after conversion into UTF-16BE is : " );
for ( int i = 0 ; i < c.length; i++) {
System.out.print(c[i]);
}
}
catch (UnsupportedEncodingException g) {
System.out.println( "Unsupported character set"
+ g);
}
}
}
|
Output
The String before conversion is :
Geeks for Geeks
The String after conversion into UTF-16 is :
-2-107101010101010701150320102011101140320710101010101070115
The String after conversion into UTF-16BE is :
07101010101010701150320102011101140320710101010101070115
Last Updated :
04 Jun, 2023
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