orhanobut

private static void findTopN(int[] a, int k) {
   if (a == null) return;
   if (a.length <= k) {
      return;
   }
   PriorityQueue<Integer> pq = new PriorityQueue<Integer> (k);
   for (int i = 0; i < a.length; i++) {
      pq.add(a[i]);
      if (pq.size() > k) {
         pq.poll();

orhanobut

public static void findFirstSeq(int[] a, int k) {
   int size = a.length;
   for (int i = 0; i < size; i++) {
      int total = 0;
      for (int j = i; j < size; j++) {
         total += a[j];
         if (total > k) {
            break;
         } else if (total == k) {
            System.out.println("FOUND IT " + a[i] + ", " + a[j]);

orhanobut

public static void removeDuplicates(int[] a){
  Set<Integer> s = new HashSet<Integer>();
  for (int i : a) {
    s.add(i);
  }
  s.toArray();
}

orhanobut

public static void permString(String p, String t){
    int size = t.length();
    if (size == 0){
        System.out.println(p);
    } else {
        for (int i=0; i<size; i++){
            perm(p + t.charAt(i),
                t.substring(0,i) + t.substring(i+1));
        }
    }

orhanobut

public static void findTopK(int[] a, int k){
    PriorityQueue<Integer> pq = new PriorityQueue<Integer>(k+1);
    for (int i : a){
        if (!pq.contains(i)){
            pq.add(i);  
        }
        if (pq.size() > k){ 
            pq.poll();
        }
    }

orhanobut

public static File findFile(File file, String fileName){
    File[] files = file.listFiles();
    if (files == null) return null;
    for (File f : files){
        if (f.isFile() && f.getName().equals(fileName)){
            return f;
        } else if (f.isDirectory()){
            return findFile(f, fileName);
        }
    }

orhanobut

$.ajax({
   type: "POST",
   url: "file_upload.php",
   data: yourData,
   dataType: "json",
   success: function (result) {
      if (result.success) {
         //your cod
      }
   },

orhanobut

// Slide up animation

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="@android:integer/config_mediumAnimTime"
        android:fromYDelta="100%"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:toXDelta="0" />

orhanobut

public static int sqr(int a){
  
  if (a < 1) return 0;
  
  int low = 1;
  int h = a;
  
  
  while (low < h){
      

orhanobut

public class HelloWorld {

    public static void main(String[] args) {
        Node r = new Node(0);

        r.left = new Node(1);
        r.right = new Node(2);

        r.left.left = new Node(3);
        r.left.right = new Node(4);