Java_Mini_Project/multithread.java at master · pratikdesai189/Java_Mini_Project · GitHub

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import java.util.Scanner;


//
//Write your code here
class Task1 extends Thread{
    static int a=0;
    static int beg=0;
    public void run(){
        int k=Task1.beg;
        int i1=0;
        while(i1<Task1.a){
            Solution.threadArray[Integer.parseInt(Solution.i)]=k++;
            int a1=Integer.parseInt(Solution.i);
            a1++;
            i1++;
            Solution.i=a1+"";
            try{
                Thread.sleep(1);
            }
            catch(InterruptedException e){}
        }
    }
}

class Task2 extends Thread{
    static int a=0;
    static int beg=0;
    public void run(){
        int k=Task2.beg;
        int y=0;
        while(y<Task2.a){
            Solution.threadArray[Integer.parseInt(Solution.i)]=k++;
            int a1=Integer.parseInt(Solution.i);
            a1++;
            y++;
            Solution.i=a1+"";
            try{
                Thread.sleep(1);
            }
            catch(InterruptedException e){}
        }
    }
}

class Task3 extends Thread{
    static int a=0;
    static int beg=0;
    public void run(){
        for(int i=Task3.beg;i<Task3.beg+Task3.a;i++){
            Solution.threadArray[i]=i;

        }
    }
}

public class Solution {
        public static final int[] threadArray = new int[300];
        public static volatile String i = 0+"";
    public boolean test() throws InterruptedException
    {
        Task1 task1 = new Task1();
        Task2 task2 = new Task2();
        Task3 task3 = new Task3();
        Thread task2Thread = new Thread(task2);
        Thread task3Thread = new Thread(task3);
        task1.start();
        task2Thread.start();
         // these statements ensures that Task1 and task2Thread fully
        // completed before the starting of next Task Task3
        task1.join();
        task2Thread.join();
        task3Thread.start();
        int first = Task1.a+Task2.a;
        int containsSecondThread = Task1.a;
        String oneAndTwo = "";
        String sizeOfTask1 = "";
        for(int i=0;i<first;i++)
        {
            oneAndTwo += threadArray[i]+" ";
        }
        for(int i=0;i<containsSecondThread;i++)
        {
            sizeOfTask1 += threadArray[i]+" ";
        }
        int begOfTask3 = Task3.beg;
        String checkingString = "";
        for(int i=begOfTask3;i<threadArray.length;i++)
        {
            checkingString += i + " ";
        }
        String task3String = "";
        for(int j = begOfTask3;j<threadArray.length;j++)
        {
            task3String += threadArray[j]+" ";
        }
        if((!oneAndTwo.contains(begOfTask3+"") && sizeOfTask1.contains(Task2.beg+"")) && task3String.equals(checkingString))
        {
            return true;
        }
        return false;
    }
    public static void main(String[] args) throws InterruptedException
    {
        Scanner sc= new Scanner(System.in);
            Solution solution = new Solution();
            int one = sc.nextInt();
            Task1.a = one;
            Task1.beg = 0;
            int two = sc.nextInt();
            Task2.a = two;
            Task2.beg = one;
            int three = sc.nextInt();
            Task3.a = three;
            Task3.beg = one+two;
            System.out.print(solution.test());
    }
}