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Java

Java Multiple Inheritance

java
interface
inheritance
composition

Java: method to get position of a match in a String?

java
string-manipulation
regex-patterns
performance-optimization

Java Look and Feel (L&F)

java
look-and-feel
ui-design
swing

"java.lang.outofmemoryerror: PermGen space" in Maven build

java
memory-management
maven-configuration
jvm-optimization

Java.lang.outofmemoryerror: GC overhead limit exceeded

java
memory-management
garbage-collection
optimization

Java.lang.noclassdeffounderror: Could not initialize class org.codehaus.groovy.vmplugin.v7.Java7

java
gradle
spring-boot
groovy

Java.lang.noclassdeffounderror: com/sun/mail/util/MailLogger with JUnit test in Java mail

java
mail-api
maven-dependencies
classpath-issues

Java how to replace 2 or more spaces with single space in string and delete leading and trailing spaces

java
string-manipulation
performance-optimization
regex

Java: How to determine the correct charset encoding of a stream

java
charset-detection
encoding
stream-processing

Java - How to create new Entry (key, value)

java
map-implementation
generics
collections

Java: how do I get a class literal from a generic type?

java
reflection-api
type-erasure
generics

Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize

java
memory-management
jvm-options
java-8

Java executors: how to be notified, without blocking, when a task completes?

java
async-programming
callback-functions
executor-service

Java equivalent to C# extension methods

java
static-methods
java-utility-classes
lombok

Java Equivalent of C# async/await?

java
async-programming
completablefuture
rxjava

Javadoc: package.html or package-info.java

java
javadoc
annotations
package-info-java

Java: Difference between strong, soft, weak, and phantom references

java
reference-types
garbage-collection
memory-management

Java Desktop application: SWT vs. Swing

java
gui-editors
performance-optimization
layout-management

Java: Class.isInstance vs Class.isAssignableFrom

java
reflection
type-checking
dynamic-type-checking

Javac is not recognized as an internal or external command, operable program or batch file

java
environment-variables
path-management
java-setup