java convert int to hex string in fixed length

/**
 * @author lautturi.com 
 * Java example:convert int to hex string in java
 */


import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		int myInt = 123;
		
		String binStr1 = String.format("%02X", myInt);
		String binStr2 = String.format("%05X", myInt);
		String binStr3 = String.format("%05x", myInt);

		System.out.println(myInt);
	  	System.out.println(binStr1);
	  	System.out.println(binStr2);
	  	System.out.println(binStr3);

	}
}

output:

123
7B
0007B
0007b