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Maven in Eclipse: step by step installation [closed]
...ads/eclipse-packages/ have M2Eclipse included already. As of Neon both the Java and the Java EE packages do - look for "Maven support")
Way 1: Maven Eclipse plugin installation step by step:
Open Eclipse IDE
Click Help -> Install New Software...
Click Add button at top right corner
At pop up: ...
In Java 8 how do I transform a Map to another Map using a lambda?
I've just started looking at Java 8 and to try out lambdas I thought I'd try to rewrite a very simple thing I wrote recently. I need to turn a Map of String to Column into another Map of String to Column where the Column in the new Map is a defensive copy of the Column in the first Map. Column has...
max value of integer
...(for 32 bit machine) is 32 bits, and it ranges from -32,768 to +32,767.
In Java, the integer(long) is also 32 bits, but ranges from -2,147,483,648 to +2,147,483,647.
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Configuring Log4j Loggers Programmatically
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If someone comes looking for configuring log4j2 programmatically in Java, then this link could help: (https://www.studytonight.com/post/log4j2-programmatic-configuration-in-java-class)
Here is the basic code for configuring a Console Appender:
ConfigurationBuilder<BuiltConfiguration> ...
Building big, immutable objects without using constructors having long parameter lists
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.build();
I wrote "CORRECTLY DONE" in bold because most Java programmers get fluent interfaces wrong and pollute their object with the method necessary to build the object, which is of course completely wrong.
The trick is that only the build() method actually creates a Foo (henc...
How to step back in Eclipse debugger?
...ate: Chronon provides a commercial product that it describes as a "DVR for Java", which appears to do a lot of the same things as the ODB.
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Import package.* vs import package.SpecificType [duplicate]
...rhead to write an import loading all the types within one package ( import java.* ); than just a specific type (i.e. import java.lang.ClassLoader )? Would the second one be a more advisable way to use than the other one?
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Is not an enclosing class Java
...lly helpful, I never knew you could call new twice in a row (and I've done java for 8+ years!)
– PaulBGD
Sep 13 '15 at 0:58
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Is there a way to dump a stack trace without throwing an exception in java?
I am thinking of creating a debug tool for my Java application.
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Why is the clone() method protected in java.lang.Object?
What is the specific reason that clone() is defined as protected in java.lang.Object ?
11 Answers
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