Java getBytes () method

Java String class

There are two forms getBytes () method:

• getBytes (String charsetName): using the platform's default character set string encoded as byte sequence, storing the result into a new byte array.

• getBytes (): using the platform's default character set string encoded as byte sequence, storing the result into a new byte array.

grammar

public byte[] getBytes(String charsetName) throws UnsupportedEncodingException

或

public byte[] getBytes()

parameter

• charsetName - supported character set name.

return value

Returns the byte array.

Examples

import java.io.*;

public class Test {
	public static void main(String args[]) {
		String Str1 = new String("w3big");

		try{
			byte[] Str2 = Str1.getBytes();
			System.out.println("返回值：" + Str2 );
			
			Str2 = Str1.getBytes( "UTF-8" );
			System.out.println("返回值：" + Str2 );
			
			Str2 = Str1.getBytes( "ISO-8859-1" );
			System.out.println("返回值：" + Str2 );
		} catch ( UnsupportedEncodingException e){
			System.out.println("不支持的字符集");
		}
	}
}

The above program execution results:

返回值：[B@7852e922
返回值：[B@4e25154f
返回值：[B@70dea4e

Java String class