Java第一次作业3.5

1.输出学号班级和姓名

public class Testname {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
         System.out.println("193230532 计算机1905杨欣彤");
    }

}

2.输出以下图形
  * 
 *** 
*****
 *** 
  *

public class Testname {

    /**
     * @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 Testname {

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

}