SalithaUCSC

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.BiConsumer;
import java.util.function.Consumer;

public class ForEachDemo {

    public static void main(String[] args) {

SalithaUCSC

import java.util.Arrays;
import java.util.List;

public class StreamOperations {

    public static void main(String[] args) {

        List<Integer> numbers = Arrays.asList(-1, 3, 5, 7, 9, 2, 4, 6, 8);
        List<String> names = Arrays.asList("Java", "PHP", "JavaScript", "Python");

SalithaUCSC

import java.util.concurrent.*;

class Task implements Runnable {

    private String name;

    Task(String name){
        this.name = name;
    }

SalithaUCSC

// RESOURCE GOING TO BE SHARED
class Resource {
    private String name;
    public synchronized void getAccess(String resource) {
        System.out.println(resource+" is accessed by "+Thread.currentThread().getName());
        try {
            Thread.sleep(1000);
        }
        catch (Exception e) {
            System.out.println("Thread Exception Found!");

SalithaUCSC

package com.nCinga.threads;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.concurrent.*;

class Square implements Callable<Integer> {

    private Integer number;

SalithaUCSC

class ThreadOne extends Thread {
    public void run(){
        for (int i = 0; i < 10; i++) {
            System.out.println(Thread.currentThread().getName()+" => "+i);
        }
    }
}

class ThreadTwo implements Runnable {
    public void run(){

SalithaUCSC

<?php

namespace App\Providers;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.

SalithaUCSC

class SingletonDemo {
    
    private static SingletonDemo instance;
    
    private SingletonDemo(){}
    
    public static SingletonDemo getInstance(){
        if(instance == null){
            instance = new SingletonDemo();
        }

SalithaUCSC

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class DBConnection {

    private Connection con;
    private static DBConnection dbCon;

    private DBConnection() throws ClassNotFoundException, SQLException {

SalithaUCSC

ArrayList<Integer> list = new ArrayList<>();
list.add(1);
list.add(2);
list.add(1);
list.add(3);
list.add(4);
Map<Integer, Integer> map = new HashMap<>();
for(Integer i: list){
    int count = 0;
    for(Integer j: list){