Java第一周作业

1.输出学号班级和姓名

public class homework {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
       System.out.println("193230528  计算机1905  项美婷  ");
    }

}

2.输出以下图形

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

public class homework {

    /**
     * @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 homework {

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

}