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<5;i++){ System.out.print(list.get(i)+" "); } System.out.println(); System.out.print("增强for循环:"); //write your code here...... for(int j:list){ System.out.print(j+" "); } System.out.println(); System.out.print("迭代器遍历:"); //write your code here...... Iterator<Integer> it=list.iterator(); while(it.hasNext()){ int k=it.next(); System.out.print(k+" "); } System.out.println(); } }