Educoder-学习-Java类和对象之可变参数

掌握知识点

• …可变长形参（如：string… name，具体看下面代码）
• 一维数组的灵活控制

（第一题）通关源码

public class Student {

	public static void print(String... name){
		
		System.out.println("本次参加考试的有"+name.length+"人，名单如下：");
		for (int i = 0 ; i < name.length; i++){
			System.out.println(name[i]);
		}
	}	
}

public class Demo{
    public static void main(String[] args) {
        Student student = new Student();
        student.print("张强","李成","王勇");    // 传入3个值
        student.print("马丽","陈玲");
    }
}

（第二题）通关源码

public class Add {

    public static int add(int... a){
        int sum = 0;
        for (int i = 0; i < a.length; i++){
            sum = sum + a[i];
        }
        return sum;
    }

}

public class Demo {
    public static void main(String[] args) {
        System.out.println("add(25,36)的值为："+Add.add(25,36));
        System.out.println("add(58,96,754)的值为："+Add.add(58,96,754));
    }
}

2分钟通关，比某些人抄答案还要快！！