Learn how to add two numbers with user input:Example import java.util.Scanner; // Import the Scanner class class MyClass { public static void main(String[] args) { int x, y, sum; Scanner myObj = new Scanner(System.in); // Create a Scanner object System.out.println("Type a number...
public static void main(String[] args) { ListNode l1 = new ListNode(2); l1.add(new ListNode(4)); l1.add(new ListNode(3)); ListNode l2 = new ListNode(5); l2.add(new ListNode(6)); l2.add(new ListNode(4)); ListNode listNode = new AddTwoNumbers().addTwoNumbers(l1, l2); Syste...
You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list. 你有两个非空链表,表示两个非负整数,数字以相反的顺序存储,每个节点中包...
ListNode next){this.val = val; this.next = next;}*}*/publicListNodeaddTwoNumbers(ListNodel1,ListNodel2){ListNodedummy=newListNode(0);// 创建一个虚拟头节点ListNodecurrent=dummy;// 指针指向虚拟头节点intcarry=0;// 进位标志while(l1!=null||l2!=null){intx=l1!=...
输入:(2 -> 4 -> 3) + (5 -> 6 -> 4) 输出:7 -> 0 -> 8 原因:342 + 465 = 807 Java解法1: publicclassSolution {publicListNode addTwoNumbers(ListNode l1, ListNode l2) { ListNode dummy=newListNode(-1); ListNode cur=dummy;intcarry = 0;while(l1 !=null|| l2 !=null) {intd1...
You are given two non-empty linked lists representing two non-negative integers. The most significant digit comes first and each of their nodes contain a single digit. Add the two numbers and return it as a linked list. You may assume the two numbers do not contain any leading zero, excep...
publicListNode addTwoNumbers(ListNode l1, ListNode l2) { ListNode head =newListNode(0); ListNode tail = head; intsum =0; intcarry =0; while(l1 !=null|| l2 !=null){ if(l1 ==null){ sum = l2.val + carry; l2 = l2.next; ...
public ListNode addTwoNumbers(ListNode l1, ListNode l2) { StringBuilder sb1 = new StringBuilder(); StringBuilder sb2 = new StringBuilder(); while (l1 != null) { sb1.append(l1.val); l1 = l1.next; } while (l2 != null) { sb2.append(l2.val); l2 = l2.next; } sb1.reverse();...
util.HashSet; public class HashSetExample { public static void main(String[] args) { HashSet<Integer> numbers = new HashSet<>(); numbers.add(1); numbers.add(2); numbers.add(3); // 尝试添加重复元素,不会生效 numbers.add(2); System.out.println("集合大小:" + numbers.size()); //...
add(2); numbers.add(8); numbers.add(1); // 使用自定义比较器进行升序排序 Collections.sort(numbers, new IntegerComparator()); // 打印排序结果 for (Integer num : numbers) { System.out.println(num); } } } 在上面的示例中,我们创建了一个整数列表 numbers,然后使用自定义的 IntegerComparator ...