test1.java

java经典的源代码 我非常喜欢这个源代码 对于编程很有好处

//Test1.Java
public class Test1
{
        public static void main(String args[])
   {
          int i=100;
          long l=5252524;
          double d=123.456;
          float f=3.1415f;
          Integer obj1=new Integer(i);
          Float obj2=new Float(f);
          Long obj3=new Long(l);
          Double obj4=new Double(d);
          String s1=obj1.toString();
          String s2=obj2.toString();
          String s3=obj3.toString();
          String s4=obj4.toString();
          System.out.println("s1 ="+s1);
          System.out.println("s2 ="+s2);
          System.out.println("s3 ="+s3);
          System.out.println("s4 ="+s4);
   }
}