第一次作业

1.输出学号班级和姓名

public class Exe1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.println("1901");
        System.out.println("193230115");
        System.out.println("刘源丰");        
    }

}

2.输出以下图形

public class Exe1 {

    /**
     * @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 Exe1 {

    /**
     * @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));        
    }

}