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);
}

}