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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
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Java heap terminology: young, old and permanent generations?
...What the concepts of young , old and permanent generations are in the Java heap terminology, and more specifically the interactions between the three generations.
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Using Java with Nvidia GPUs (CUDA)
I'm working on a business project that is done in Java, and it needs huge computation power to compute business markets. Simple math, but with huge amount of data.
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Is there a Newline constant defined in Java like Environment.Newline in C#?
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As of Java 7 (and Android API level 19):
System.lineSeparator()
Documentation: Java Platform SE 7
For older versions of Java, use:
System.getProperty("line.separator");
See https://java.sun.com/docs/books/tutorial/essentia...
Weird Integer boxing in Java
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This range can be extended using java.lang.Integer.IntegerCache.high property. Interesting that Long doesn't have that option.
– Aleksandr Kravets
Aug 31 '15 at 10:29
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How do I create a unique ID in Java? [duplicate]
I'm looking for the best way to create a unique ID as a String in Java.
11 Answers
11
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java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger for JUnit test case for Java mail
I am using Java Mail API to read and parse emails. It is working fine with Servlet code.
7 Answers
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How to limit setAccessible to only “legitimate” uses?
The more I learned about the power of java.lang.reflect.AccessibleObject.setAccessible , the more astonished I am at what it can do. This is adapted from my answer to the question ( Using reflection to change static final File.separatorChar for unit testing ).
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Keystore type: which one to use?
By looking at the file java.security of my JRE , I see that the keystore type to use by default is set to JKS . Here , there is a list of the keystore types that can be used.
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How do I convert a byte array to Base64 in Java?
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Java 8+
Encode or decode byte arrays:
byte[] encoded = Base64.getEncoder().encode("Hello".getBytes());
println(new String(encoded)); // Outputs "SGVsbG8="
byte[] decoded = Base64.getDecoder().decode(encoded);
println(new S...