Java第一周作业

1.输出班级学号和姓名

public class TestHello {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.println("193230337,计算机1903");
        System.out.println("周明");
    }

}

 

2.输出以下图形

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

public class jia {

    /**
     * @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

       public class tuxing {

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

}