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    <p>The easiest approach would be to use a <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Timer.html" rel="nofollow"><code>Timer</code></a>. With that, you don't need the <code>if</code> logic; you can just use the <code>firstTime</code> argument when scheduling a <a href="http://docs.oracle.com/javase/7/docs/api/java/util/TimerTask.html" rel="nofollow"><code>TimerTask</code></a>.</p> <pre><code>Timer timer = new Timer(); TimerTask task = new TimerTask() { @Override public void run() { // do something } }; // schedule the task to be run every 100ms (0.1 sec), // starting after "threshold" milliseconds have past timer.schedule(task, threshold, 100); </code></pre> <p>It's not clear from your description if you want to repeatedly "do something" once the time threshold has been exceeded, or if you just want to wait until a certain time has passed and then "do something" once. The above code is for the repeating case. For a one-shot occurrence at some future time, change the last line to:</p> <pre><code>timer.schedule(task, threshold); </code></pre> <p>If you're using Swing, you should use a Swing <a href="http://docs.oracle.com/javase/7/docs/api/javax/swing/Timer.html" rel="nofollow">Timer</a> rather than a java.util.Timer. See <a href="http://docs.oracle.com/javase/tutorial/uiswing/misc/timer.html" rel="nofollow">How to Use Swing Timers</a> for more info.</p> <p>EDIT: Your comment clarified things a bit. It's fairly easy to do what you described:</p> <pre><code>Timer timer = new Timer(); TimerTask task = new TimerTask() { private final long start = System.currentTimeMillis(); @Override public void run() { if (System.currentTimeMillis() - start &lt; threshold) { // do something } else { // do something else } } }; // schedule the task to be run every 100ms (0.1 sec), starting immediately timer.schedule(task, 0, 100); </code></pre> <p>Note that "do something" and "do something else" can be method calls to an enclosing class.</p> <p>A cleaner approach might be to define several <code>TimerTask</code>s that are scheduled to execute at different times. The "something else" task that triggers an exception can be scheduled for one-time execution at the threshold time. You can also cancel individual tasks and you can even schedule a task that will cancel another task.</p>
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    1. POJava: Keep executing if statement
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    1. COI'm sorry let me clarify. I want the run() method to execute until the time expires, in which case the program will do something else (likely throw an exception). Is there a way to specify this via the timer?
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    2. CO@user760220 - This is easy to do. I expanded my answer to show one approach.
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    3. COIs there a way to have the run() method only occur once?
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