i have a picture that after the user press on the right bottom i need to call to the internet in order to get new data but after i run a thread in order to get new data - my main program not wait fot this thread and call to the internet to get data whan the x and y have an old values - how can i make that the main thread will wait for this thread so the data i will recive will be the new pixcles that is in the right side of the picture?

see join() in the thread class.

//this is my thread:
public class threadMoveRight implements Runnable{
Storeroom sto = new Storeroom();
String url;
Image image1;
boolean flag;

public threadMoveRight(String purl,Image pImage) {
this.url = purl;
this.image1 = pImage;
}

public void run() {
searchData();
flag = true;
}

}
//and after the user press on right he go to this code :
if (sto.doINeedConection){
while (sto.flag==false){
sleep();
}
}
repaint();
//the result:
//the program stay a lot of time in the sleep

Where/how do you start (or call) the thread?