第一次作业

1.输出学号班级和姓名

package work1;

public class z1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
System.out.println("193230538计算机1905赵富洋");
    }

}

 

2.输出以下图形

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

package work1;

public class z1 {

    /**
     * @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

package work1;

public class z1 {

    /**
     * @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);

    }

}