www.pudn.com > DestTest.rar > StringTest.java

package com.des.test; 
 
public class StringTest { 
	public static void main(String[] args) { 
		String key_string = "123456789A"; 
		System.out.println(key_string.substring(5)); 
		String zeros = "000000000000000000000000"; 
 
		if (key_string != null) { 
			int keylength = key_string.length(); 
			if (keylength < 24) { 
				key_string += zeros.substring(keylength); 
 
			} 
 
		} 
		System.out.println(key_string+":"+key_string.length()); 
	} 
 
}