37 lines
927 B
Java
37 lines
927 B
Java
// tasks/ResponsiveUI.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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// User interface responsiveness
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// {TimeOutDuringTesting}
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class UnresponsiveUI {
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private volatile double d = 1;
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public UnresponsiveUI() throws Exception {
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while(d > 0)
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d += (Math.PI + Math.E) / d;
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System.in.read(); // Never gets here
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}
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}
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public class ResponsiveUI extends Thread {
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private static volatile double d = 1;
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public ResponsiveUI() {
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setDaemon(true);
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start();
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}
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@Override
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public void run() {
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while(true) {
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d += (Math.PI + Math.E) / d;
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}
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}
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public static void
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main(String[] args) throws Exception {
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//- new UnresponsiveUI(); // Must kill this process
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new ResponsiveUI();
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System.in.read();
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System.out.println(d); // Shows progress
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}
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}
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