file2.java

学习java编程的好程序

///创建一个包装类的对象x1
///通过x1中的不同方法输出不同的数据类型的数据
public class file2
 {
  
  public static void main(String[] args)
  {
    int a=20;
    byte b='a';
    short c=11;
    long d=112;
    float e=11.2f;
    double f=11.3;
    Integer x1=new Integer(a);
    Byte x2=new Byte(b);
    Short x3=new Short(c);
    Long x4=new Long(d);
    Float x5=new Float(e);
    Double x6=new Double(f);
    System.out.println(x1);
    System.out.println(x2);
    System.out.println(x3);
    System.out.println(x4);
    System.out.println(x5);
    System.out.println(x6);
    System.out.println(x1.toBinaryString(a));
    System.out.println(x1.toHexString(a));  
  }
 }