包装类

package shiyan;

import java.text.SimpleDateFormat;
import java.util.Date;
public class shiyan1 {

    public static void main(String[] args) {
        // TODO 自动生成的方法存根
        Boolean objBool = new Boolean(true);
        boolean b = objBool.booleanValue();
        Character objChar = new Character(‘X‘);
         char c = objChar.charValue();    
         Integer objInt = new Integer(100);
         int i =  objInt.intValue();
          Double objDou = new Double(3.1415);
          double d =  objDou.doubleValue();
        Long L = new Long(9579);
        long l =  L.longValue();
        
        System.out.println(b);
        System.out.println(c);
        System.out.println(i);
        System.out.println(d);
        System.out.println(l);
        
        SimpleDateFormat  r = new SimpleDateFormat("yyyy年MM月dd日  HH时mm分ss秒 E");
        String  a = r.format(new Date());
        System.out.println(a);
    }

}