Java日志第45天 2020.8.20

例1.1 输出一行字符：“This a Java program.”

public class Demo01 {
    public static void main(String[] args) {
        System.out.println("This is a Java program.");
    }
}

 

          

例1.2 求a和b两个数之和

public class Demo02 {
    public static void main(String[] args) {
        int a, b, sum;
        Scanner sc = new Scanner(System.in);
        a = sc.nextInt();
        b = sc.nextInt();

        sum = a + b;
        System.out.println("a+b="+sum);
    }
}

例1.3 给两个数x和y，求两数中的大者

public class Demo03 {
    public static void main(String[] args) {
        int a, b, m;
        Scanner sc = new Scanner(System.in);
        a = sc.nextInt();
        b = sc.nextInt();
        m = max(a, b);
        System.out.println("max="+m);
    }

    public static int max(int x, int y) {
        int z;
        if(x>y)
            z=x;
        else
            z=y;
        return z;

    }
}

 

 

例1.4 包含类的C++程序

public class Demo04 {
    public static void main(String[] args) {
        Student stud1 = new Student();
        Student stud2 = new Student();

        stud1.setData();
        stud2.setData();

        stud1.display();
        stud2.display();
    }
}