visparashar

public class RateLimiterDemo {
	
	
	
	public static void main(String[] args) {
		
		RateLimiter limiter = new RateLimiterImpl();
        System.out.println("test1 " + limiter.accept("test1"));
        System.out.println("test1 " +limiter.accept("test1"));
        System.out.println("test1 " +limiter.accept("test1"));

visparashar

package com.learning;

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class ReentranceLockDemo {
	
	final static Custom c= new Custom();
	
	public static void main(String[] args) throws InterruptedException {

visparashar

	// convinient methods
	
	public HashMap getAddressMap() {
		final String KEY="1";
		HashMap map = new HashMap();
		if(AdminAreaLevel1!=null)
			map.put(AdminAreaLevel1.toLowerCase(), KEY);
		if(AdminAreaLevel2!=null)
			map.put(AdminAreaLevel2.toLowerCase(),KEY);
		if(postcode!=null)

visparashar

package com.learning;

import java.util.concurrent.CountDownLatch;

public class ThreadArray {

	public static void main(String[] args) {
		CountDownLatch latch = new CountDownLatch(10);
		Thread[]  t = new Thread[10];
		MyThread[] mt = new MyThread[10];

visparashar

@FunctionalInterface //optional
interface MyInterface{
    public void myMethod();
}
public class LambdaExpressionEx{
    public static void main(String args[])
    {
        int variable = 10;
        //implemenmtation without lambda expression
        MyInterface myInterface = new MyInterface(){

visparashar

import java.util.ArrayList;

public class CE {
    public static void main(String[] args) {
        // NOTE: The following input values are used for testing your solution.

        int[] array1A = {1, 3, 4, 6, 7, 9};
        int[] array2A = {1, 2, 4, 5, 9, 10};
        // commonElements(array1A, array2A) should return [1, 4, 9] (an array).

visparashar

import java.util.HashMap;

public class MF {
    public static void main(String[] args) {
        // NOTE: The following input values are used for testing your solution.

        // mostFrequent(array1) should return 1.
        int[] array1 = {1, 3, 1, 3, 2, 1};
        // mostFrequent(array2) should return 3.
        int[] array2 = {3, 3, 1, 3, 2, 1};

visparashar

public class RotateByReversal {

	public static void main(String[] args) {
		int arr[] ={1,2,3,4,5,6,7};
		RotateByReversal rr = new RotateByReversal();
		rr.reverse(arr, 0, 1);
		rr.reverse(arr, 2, 6);
		rr.reverse(arr, 0, 6);
		for(int i =0;i<arr.length;i++){
			System.out.println(arr[i]);

visparashar

public class RotateByOneArrayRotating {
	
	public static void main(String[] args) {
		int a[] ={1,2,3,4,5,6,7};
		int d=2;
		RotateByOneArrayRotating r = new RotateByOneArrayRotating();
		r.rotateLeft(a, d, 7);
		for(int i =0;i<a.length;i++){
			System.out.println(a[i]);
		}

visparashar

public class RotationArrayDemo {
	
	public static void main(String[] args) {
		
		int[] a ={1,2,3,4,5,6};
		
		int d =2;
		
		int temp[] =new int[d];