Java _ threads Files

Programmers Files :-


1. Sync File :-https://drive.google.com/open?id=0B08RKBSts8D8aFB2cVVlVFIzTlk




*1 .ControlledThread

Ans

public class ControlledThread extends Thread {
  static final int SUSP = 1;
  static final int STOP = 2;
  static final int RUN = 0;
  private int state = RUN;

  public synchronized void setState(int s) {
    state = s;
    if ( s == RUN ) {
      notify();
    }
  }

  public synchronized boolean checkState() {
    while ( state == SUSP ) {
      try {
        wait();
      } catch (InterruptedException e) {
        // ignore
      }
    }
    if ( state == STOP ) {
      return false;
    }
    return true;
  }

  public void run() {
    while ( true ) {
      //doSomething();

      // Be sure shared data is in consistent state in
      // case the thread is waited or marked for exiting
      // from run()
      if ( !checkState() ) {
        break;
      }
    }
  }
}

*2.  MyStack

Ans

public class MyStack {
  int idx = 0;
  char [] data = new char[6];

  public void push(char c) {
    data[idx] = c;
    idx++;
  }

  public char pop() {
    idx--;
    return data[idx];
  }
}

*3. TestMyStack

Ans

public class TestMyStack {

   public static void main(String args[]) {

     MyStack stack = new MyStack();

     stack.push('H');

     stack.push('i');

     System.out.println("Stack is: " + String.copyValueOf(stack.data));

     stack.pop();

     stack.push('o');

     System.out.println("After one pop and another push, Stack is: " + 

String.copyValueOf(stack.data));

   }

}

     

*4. TestThread

Ans

public class TestThread {

  public static void main(String args[]) {

    Xyz r = new Xyz();

    Thread t = new Thread(r);

    t.start();

  }

}

class Xyz implements Runnable {

  int i;

  public void run() {

    i = 0;

    while (true) {

      System.out.println("Hello " + i++);

      if ( i == 50 ) {

break;

      }

    }

  }

}

Code Files :- https://drive.google.com/open?id=0B08RKBSts8D8LVZyY3hsU25XZUE