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fix bugs in java codes using JDK 1.8.0

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This commit is contained in:
sjinzh
2023-01-14 20:47:03 +08:00
parent a5affe6113
commit bb84df27cf
2 changed files with 3 additions and 3 deletions
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4
codes/java/include/TreeNode.java
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@ -32,7 +32,7 @@ public class TreeNode {
return null;
TreeNode root = new TreeNode(list.get(0));
Queue<TreeNode> queue = new LinkedList<>() {{ add(root); }};
Queue<TreeNode> queue = new LinkedList<TreeNode>() {{ add(root); }};
int i = 0;
while(!queue.isEmpty()) {
TreeNode node = queue.poll();
@ -58,7 +58,7 @@ public class TreeNode {
public static List<Integer> treeToList(TreeNode root) {
List<Integer> list = new ArrayList<>();
if(root == null) return list;
Queue<TreeNode> queue = new LinkedList<>() {{ add(root); }};
Queue<TreeNode> queue = new LinkedList<TreeNode>() {{ add(root); }};
while(!queue.isEmpty()) {
TreeNode node = queue.poll();
if(node != null) {