java第一周作业

1.输出学号班级和姓名

public class Text {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.println("学号：193230525");
        System.out.println("班级：计算机1905");
        System.out.println("姓名：王紫懿");
        

    }

}

2.输出以下图形

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

public class tuxing {

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

    }

}

 

3.定义两个整型变量a=5  b=8  求平方和并输出

public class sum {

    /**
     * @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);

    }

}