class MathSin extends Thread {
	public double deg;
	public double res;
	public MathSin(int degree) {
		deg = degree;
	}
	public void run() {
		System.out.println("Executing sin of "+deg);
		double Deg2Rad = Math.toRadians(deg);
		res = Math.sin(Deg2Rad);
		System.out.println("Exit from MathSin. Res = "+res);
	}
}

class MathCos extends Thread {
	public double deg;
	public double res;
	public MathCos(int degree) {
		deg = degree;
	}
	public void run() {
		System.out.println("Executing cos of "+deg);
		double Deg2Rad = Math.toRadians(deg);
		res = Math.cos(Deg2Rad);
		System.out.println("Exit from MathCos. Res = "+res);
	}
}

class MathTan extends Thread {
	public double deg;
	public double res;
	public MathTan(int degree) {
		deg = degree;
	}
	public void run() {
		System.out.println("Executing tan of "+deg);
		double Deg2Rad = Math.toRadians(deg);
		res = Math.tan(Deg2Rad);
		System.out.println("Exit from MathTan. Res = "+res);
	}
}
public class MathThreads {

	public static void main(String[] args) {
		
		MathSin st = new MathSin(45);
		MathCos ct = new MathCos(60);
		MathTan tt = new MathTan(30);
		st.start();
		ct.start();
		tt.start();
		try { // wait for completion of all thread and then sum
			st.join();
			ct.join(); //wait for completion of MathCos object
			tt.join();
			double z = st.res + ct.res + tt.res;
			System.out.println("Sum of sin, cos, tan = "+z);
		}
		catch (InterruptedException IntExp) { }
	}
}