Java第一周作业

1.输出学号班级和姓名

 

public class Homework1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.println("193230506 计算机1905房双莉");
    }

}

2.输出以下图形

  * 

 ***

*****

 ***

  *

public class Homework2 {

    /**
     * @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 Homework3 {

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

    }

}