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How do you kill a Thread in Java?
How do you kill a java.lang.Thread in Java?
16 Answers
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Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?
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When you compile a number literal in Java and assign it to a Integer (capital I) the compiler emits:
Integer b2 =Integer.valueOf(127)
This line of code is also generated when you use autoboxing.
valueOf is implemented such that certain numbers are "pooled", ...
The difference between the Runnable and Callable interfaces in Java
... Runnable and Callable interfaces when designing a concurrent thread in Java, why would you choose one over the other?
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Glorified classes in the Java language
Some classes in the standard Java API are treated slightly different from other classes. I'm talking about those classes that couldn't be implemented without special support from the compiler and/or JVM.
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How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?
I have an app that uses 256-bit AES encryption which is not supported by Java out of the box. I know to get this to function correctly I install the JCE unlimited strength jars in the security folder. This is fine for me being the developer, I can install them.
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Bytes of a string in Java
In Java, if I have a String x , how can I calculate the number of bytes in that string?
8 Answers
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JUnit 4 compare Sets
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Uhm, how come I get: java.lang.AssertionError: expected: java.util.Hashtable<{CompanyName=8PKQ9va3nW8pRWb4SjPF2DvdQDBmlZ, Ric=sZwmXAdYKv, Category=AvrIfd, QuoteId=4342740204922826921}> but was: java.util.Hashtable<{CompanyName=8PKQ9va3nW...
How to add new elements to an array?
...st<String>. It's dynamically growable, unlike arrays (see: Effective Java 2nd Edition, Item 25: Prefer lists to arrays).
import java.util.*;
//....
List<String> list = new ArrayList<String>();
list.add("1");
list.add("2");
list.add("3");
System.out.println(list); // prints "[1, 2...
How to use enum values in f:selectItem(s)
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If you prefer java.util.List you can just modify getStatuses() return type to List<Status> and return Arrays.asList(Status.values());
– stakahop
Oct 4 '16 at 12:42
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String's Maximum length in Java - calling length() method
In Java , what is the maximum size a String object may have, referring to the length() method call?
7 Answers
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