Integer和int

package 剑指Offer;


public class TestStringBuffer {

public static void main(String[] args) {
// TODO Auto-generated method stub
Integer i01 = 59;
int i02 = 59;
Integer i03 = new Integer(59);
Integer i04 = new Integer(59);

System.out.println(i01==i02);
System.out.println(i01==i03);
System.out.println(i03==i04);
System.out.println(i02==i04);
}

}

true
false
false
true