Java第一次作业

1.输出学号班级和姓名

 

package chap1;public class text1 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.println("193230104 计算机1901 冯雨心");
    }

}

 

2.输出以下图形

   *

  ***

 *****

  ***

   *

package chap1;
public class text2 {
    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.定义两个整形变量a=5  b=8求平方和并输出

package chap1;
public class text3 {

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

}