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Category upJava

Core Java

Learn how to use the basic concepts of the Java language by reading the guides below.

  • Definition (64)
  • Java Keyword (21)
  • Java Constructor (20)
  • Reflection (20)
  • >= Java 8 (19)
  • Java Interfaces (18)
  • Java Operators (16)
  • >= Java 11 (16)
  • Exception (15)
  • Java Loops (13)

>> Mutable vs. Immutable Objects in Java

>> Instantiate an Inner Class With Reflection in Java

>> What Is the Error: “Non-static method cannot be referenced from a static context”?

>> Convert Null Value to a Default Value in Java

>> Parse Java Source Code and Extract Methods

>> Lazy Field Initialization with Lambdas

>> Static Final Variables in Java

>> All the Ways Java Uses the Colon Character

>> Context-Specific Deserialization Filters in Java

>> Executable Comments in Java

>> Optional as a Record Parameter in Java

>> Difference Between “final static” and “static final”

>> Difference Between Information Hiding and Encapsulation

>> Get All Record Fields and Its Values via Reflection

>> Is Java Reflection Bad Practice?

>> Deprecate Finalization in Java

>> Unnamed Patterns and Variables in Java

>> Compact Source Files and Instance Main Methods in Java

>> Value-Based Classes in Java

>> When to Call System.out.flush() in Java?

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