Java第一周作业

1.输出学号班级和姓名

package homework;

public class home1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        System.out.println("计算机1904李松涛193230414");

    }

}

2.输出以下图形

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

package homework;

public class home2 {

    /**
     * @param args
     */
    public static void main(String[] args) {
    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 home3 {

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

}