8 basic packaging classes

byte Byte

short    Short

int     Integer

long　　  Long

float　   Float

double　 　Double

char　　  Character

boolean　　Boolean

 1 package org.example.commom;
 2 
 3 public class TestInteger {
 4 
 5     public static void main(String[] args) {
 6         Integer i = new Integer(1000);
 7         System.out.println(i);
 8         System.out.println(Integer.MAX_VALUE);
 9         System.out.println(Integer.toHexString(i));
10         i = Integer.parseInt("123");
11         System.out.println(i);
12         i = new Integer("222");        //String constructor 
13          System.out.println(i);
 14      }
 15  
16 }