Java第一次作业

1.输出学号班级和姓名

public class work1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.println("193230526 计算机1905 吴嘉豪");

    }

}

2.输出以下图形

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

public class work2 {

    /**
     * @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 work3 {

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

    }

}