使用nextInt()等接受输入时必须注意换行符的输入

参考http://stackoverflow.com/questions/19331426/for-loop-does-not-iterate-the-way-i-want

见以下代码：

package com.ljh.corejava;

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class NextIntTest {

	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		List<Student> students = new ArrayList<Student>() ;

		for(int i = 0 ; i < 3; i++){
			Student s = new Student();
			System.out.print("Enter name:");
			s.name = sc.nextLine();
			System.out.print("Enter number:");
			s.number = sc.nextInt();
			students.add(s);			
		}
		for(Student s : students){
			System.out.println(s.name+" : " + s.number);
		}
	}
}


class Student{
	//学生名字
	String name;
	//学号
	int number;
}

1、输入如下：

Enter n