java算法题的几种输入写法

package oop.sort;

import java.util.Arrays;
import java.util.Scanner;

public class QuickSort {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		String input;
		input = in.nextLine();
		String[] data;//1.转成string
		data = input.split(" ");//以一个空格为分隔符，仍然可以读取一个空格字符存入数组
		for (int i = 0; i < data.length; i++) {
			System.out.println(data[i]);
		}
		//数组的打印函数
		System.out.println(Arrays.toString(data));
		
		//2.使用parseInt()转换成int类型
		int[] arr1 = new int[data.length];
        for(int i = 0; i < data.length; i++){
            arr1[i] = Integer.parseInt(data[i]);
        }
		in.close();
	}
}

package oop.sort;

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

public class QuickSort {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		List list = new ArrayList<>();
		// 3.使用集合将每个数组add进去，构成二维数组
		while (in.hasNextLine()) {
			String s = in.nextLine();// 行输入
			if ("".equals(s))// 当输入s等于空字符串时，跳出循环
				break;
			String[] split = s.split(",");
			int[] tem = new int[split.length];
			for (int i = 0; i < split.length; i++) {
				tem[i] = Integer.valueOf(split[i]);
			}
			list.add(tem);
			System.out.println(Arrays.toString(tem));
		}
		System.out.println("创建完成！");
	}
}