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:: (double colon) operator in Java 8
I was exploring the Java 8 source and found this particular part of code very surprising:
17 Answers
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Do spurious wakeups in Java actually happen?
... from Source and found it reasonable enough. Also read
Spurious wakeups in Java and how to avoid them.
PS: Above link is to my personal blog that has additional details about spurious wakeups.
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Java 32-bit vs 64-bit compatibility
Will Java code built and compiled against a 32-bit JDK into 32-bit byte code work in a 64-bit JVM? Or does a 64-bit JVM require 64-bit byte code?
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Create instance of generic type in Java?
Is it possible to create an instance of a generic type in Java? I'm thinking based on what I've seen that the answer is no ( due to type erasure ), but I'd be interested if anyone can see something I'm missing:
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Does Java casting introduce overhead? Why?
... casting is not feasible, JVM must throw a ClassCastException.
Taken from JavaWorld: The cost of casting
Casting is used to convert between
types -- between reference types in
particular, for the type of casting
operation in which we're interested
here.
Upcast operations (also cal...
What is the best way to filter a Java Collection?
I want to filter a java.util.Collection based on a predicate.
27 Answers
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java.lang.OutOfMemoryError: GC overhead limit exceeded [duplicate]
...t's needed. JVM enginner, Aleksey Shipilev has even a talk on this topic ("Java.lang.String Catechism").
– G. Demecki
Nov 4 '16 at 7:03
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How can I “pretty print” a Duration in Java?
Does anyone know of a Java library that can pretty print a number in milliseconds in the same way that C# does?
11 Answers
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How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat
... Funny, I got same exception on String str = iter.next(); ! Java with collections sucks !
– Al-Mothafar
Jan 17 '15 at 14:23
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Java using enum with switch statement
...part you're missing is converting from the integer to the type-safe enum. Java will not do it automatically. There's a couple of ways you can go about this:
Use a list of static final ints rather than a type-safe enum and switch on the int value you receive (this is the pre-Java 5 approach)
Swit...