题解 | #集合遍历#

集合遍历

https://www.nowcoder.com/practice/e34b7132f9c24297ac9bcb0b7f2ea472

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

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        List<Integer> list = new ArrayList<>();
        int num1 = scanner.nextInt();
        int num2 = scanner.nextInt();
        int num3 = scanner.nextInt();
        int num4 = scanner.nextInt();
        int num5 = scanner.nextInt();
        scanner.close();
        list.add(num1);
        list.add(num2);
        list.add(num3);
        list.add(num4);
        list.add(num5);
        System.out.print("普通for循环:");

        //write your code here......
        for(int i=0; i<list.size(); i++) {
            System.out.print(list.get(i) + " ");
        }
        

        System.out.println();
        System.out.print("增强for循环:");

        //write your code here......
       for(int one: list) {
        System.out.print(one + " ");
       }
        

        System.out.println();
        System.out.print("迭代器遍历:");

        //write your code here......
       Iterator iter = list.iterator();
       while(iter.hasNext()) {
        System.out.print(iter.next() + " ");
       }

    }
}

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