测试类 public class test22 { public static void main ( String [] args ){ int num = 5 ; Integer obj1 = new Integer ( num ); System . out . println ( "obj1的值为" + obj1 ); Integer obj2 = 100 ; System . out . println ( "obj2的值为" +
测试类
public class test22 {public static void main(String[] args){
int num=5;
Integer obj1=new Integer(num);
System.out.println("obj1的值为"+obj1);
Integer obj2=100;
System.out.println("obj2的值为"+obj2);
Integer obj3=new Integer("-789");
System.out.println("obj3的值为"+obj3);
}
}
运行结果