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Klesun
6,39844 gold badges3232 silver badges3434 bronze badges
answered Feb 7 '11 at 8:23
KyleKyle
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When would you call java's thread.run() instead of thread.start()?
When would you call Java's thread.run() instead of thread.start() ?
14 Answers
14
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Convert a string representation of a hex dump to a byte array using Java?
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It doesn't work for the String "0". It throws an java.lang.StringIndexOutOfBoundsException
– ovdsrn
Jun 8 '11 at 20:06
51
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Why does Math.round(0.49999999999999994) return 1?
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Summary
In Java 6 (and presumably earlier), round(x) is implemented as floor(x+0.5).1 This is a specification bug, for precisely this one pathological case.2 Java 7 no longer mandates this broken implementation.3
The problem
0.5+0....
How to convert a byte array to a hex string in Java?
...ommons Codec, which uses very similar code.)
2k20 version, with respect to Java 9 compact strings:
private static final byte[] HEX_ARRAY = "0123456789ABCDEF".getBytes(StandardCharsets.US_ASCII);
public static String bytesToHex(byte[] bytes) {
byte[] hexChars = new byte[bytes.length * 2];
for...
When does Java's Thread.sleep throw InterruptedException?
When does Java's Thread.sleep throw InterruptedException? Is it safe to ignore it? I am not doing any multithreading. I just want to wait for a few seconds before retrying some operation.
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How do I make JavaScript beep?
...nMB2r//xKJjyyOh+cImr2/4doscwD6neZjuZR4AgAABYAAAABy1xcdQtxYBYYZdifkUDgzzXaXn98Z0oi9ILU5mBjFANmRwlVJ3/6jYDAmxaiDG3/6xjQQCCKkRb/6kg/wW+kSJ5//rLobkLSiKmqP/0ikJuDaSaSf/6JiLYLEYnW/+kXg1WRVJL/9EmQ1YZIsv/6Qzwy5qk7/+tEU0nkls3/zIUMPKNX/6yZLf+kFgAfgGyLFAUwY//uQZAUABcd5UiNPVXAAAApAAAAAE0VZQKw9ISAAACgAAAAAVQIygI...
Difference between jar and war in Java
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From Java Tips: Difference between ear jar and war files:
These files are simply zipped files
using the java jar tool. These files are
created for different purposes. Here
is the description of these files:
.jar ...
Return from lambda forEach() in java
... Thanks, that's what I was looking for! There seems to be a lot new in Java8 to explore :)
– samutamm
May 1 '14 at 12:05
10
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Closing Database Connections in Java
...ttle confused, I was reading the below from http://en.wikipedia.org/wiki/Java_Database_Connectivity
6 Answers
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