Java

How do I check if the Java JDK is installed on Mac?

How to convert String to long in Java?

number-formatting

Strip Leading and Trailing Spaces From Java String

string-manipulation

How to solve the “failed to lazily initialize a collection of role” Hibernate exception

hibernate-exception

performance-optimization

Change private static final field using Java reflection

Converting Java objects to JSON with Jackson

json-serialization

jackson-library

Why should one use Objects.requireNonNull()?

null-pointer-exceptions

How does Junit @Rule work?

test-engineering

What is the default initialization of an array in Java?

array-initialization

How to create a generic array in Java?

How to convert Set<String> to String[]?

Read input stream twice

stream-management

How to view the list of compile errors in IntelliJ?

intellij-settings

compiler-settings

Running code in main thread from another thread

Eclipse - "Incompatible JVM. Version 1.8.0_261 of the JVM is not suitable for this product. Version: 11 or greater is required"

How to check if current thread is not main thread

thread-management

android-development

Is it possible to assign numeric value to an enum in Java?

enum-best-practices

Java.lang.outofmemoryerror: Java heap space in Maven

memory-management

maven-configuration

performance-optimization

How to import a jar in Eclipse?

eclipse-configuration

"content is not allowed in prolog" when parsing perfectly valid XML on GAE

explain.codes / Java