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ListNode.java
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43 lines (38 loc) · 899 Bytes
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package include;
import java.util.List;
/**
* Definition for a singly-linked list node
*/
public class ListNode {
public int val;
public ListNode next;
public ListNode(int x) {
val = x;
}
/**
* Generate a linked list with an array
* @param arr
* @return
*/
public static ListNode arrToLinkedList(int[] arr) {
ListNode dum = new ListNode(0);
ListNode head = dum;
for (int val : arr) {
head.next = new ListNode(val);
head = head.next;
}
return dum.next;
}
/**
* Get a list node with specific value from a linked list
* @param head
* @param val
* @return
*/
public static ListNode getListNode(ListNode head, int val) {
while (head != null && head.val != val) {
head = head.next;
}
return head;
}
}