LeetCode-Java/src/main/java/leetcode/_24_/Main.java at master · coderbean/LeetCode-Java · GitHub

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package leetcode._24_;

import leetcode.common.ListNode;

/**
 * Created by zhangbo54 on 2019-03-04.
 */
public class Main {
    public static void main(String[] args) {
        Solution solution = new Solution();
        ListNode node = new ListNode(1)
                .setNext(new ListNode(2)
                        .setNext(new ListNode(3)
                                .setNext(new ListNode(4))));
        System.out.println(node);
        System.out.println(solution.swapPairs(node));

        node = new ListNode(1)
                .setNext(new ListNode(2)
                        .setNext(new ListNode(3)));
        System.out.println(node);
        System.out.println(solution.swapPairs(node));
    }
}