Java中两个线程之间的时间延迟

Question

I have the following situation:

new Thread() {
    public void run() {
        method(object1);
    }
}.start();

// some code ... 

new Thread() {
    public void run() { 
        method(object2);
    }
}.start();

The used method is a map-drawing method. So basically, first I need to draw a map with object1 and then after some time eg 5 sec another map using object2 .

I tried to put Thread.sleep(5000) between two Thread s, also after and so on... But I couldn't make it work. Any suggestions?

In this case object 2 is displayed and the object 1 is not!
If I comment the second thread, the first object is drawn. Also if I comment the first thread the second object is drawn.
The thing I need is to present object1 for 10 seconds and then to present object2.

Answer 1

Try making it easier:

method(object1);
Thread.sleep(5000);
method(object2);

There's no need to run threads if you need to wait for 5 seconds.

Alternatively, you can use java.util.Timer —but so far it seems your problem is not in the delay part.

Answer 2

If you need to draw the map with object2 after object1, you should do

new Thread() {
    public void run() {
        method(object1);
        method(object2);
    }
}.start();

I am not sure how long your method(object1) takes to run but if this takes more than 5 seconds and the thread comes back after the sleep, method(object2) will start and it is possible to the method(object2) will be done first if this take less time than method(object1).