Java第一次作业

1、输出学号班级姓名

package homework;

public class Test1 {
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
         System.out.println("193230321计算机1903庞斯文");
    }

}

2.输出以下图形

*
***
*****
***
*

package homework;

public class Test2 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.println("  *");
        System.out.println(" ***");
        System.out.println("*****");
        System.out.println(" ***");
        System.out.println("  *");
    }

}

3.定义两个整型变量a=5 b=8 求平方和并输出

package homework;

public class Tesy3 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
         int a=5;
         int b=8;
         System.out.println(a*a+b*b);
    }

}

 }