int转byte[4]

import java.io.*; 
public class IOTest { 
    public static void main(String[] args) throws Exception { 
        int i = 65535; 
        byte[] b = intToByteArray1(i); 
        for (byte bb : b) { 
            System.out.print(bb + " "); 
        } 
    } 
    public static byte[] intToByteArray1(int i) { 
        byte[] result = new byte[4]; 
        result[0] = (byte) ((i >> 24) & 0xFF); 
        result[1] = (byte) ((i >> 16) & 0xFF); 
        result[2] = (byte) ((i >> 8) & 0xFF); 
        result[3] = (byte) (i & 0xFF); 
        return result; 
    } 
    public static byte[] intToByteArray2(int i) throws Exception { 
        ByteArrayOutputStream buf = new ByteArrayOutputStream(); 
        DataOutputStream out = new DataOutputStream(buf); 
        out.writeInt(i); 
        byte[] b = buf.toByteArray(); 
        out.close(); 
        buf.close(); 
        return b; 
    } 
}