Java concepts

Java concepts introduced by version

Showing the last version where the feature was officially introduced, if possible, or the last version previewed or the the version, except that features previewed in Java 21 are shown in that version as well, since that is the version installed on the test phone.

Java 9

• Modules

Java 13

• Switch Expressions

Java 15

• Text blocks (JDK-8236934)

Java 16

• Sealed Classes
• Records (JEP 395)
• Pattern matching for instanceof (JEP 394)

Java 20

• Pattern Matching for switch
• Record Patterns

Java 21

• String templates
• Unnamed Classes and Instance main Methods
• Unnamed Patterns and Variables

Java 22

• Unnamed variables and patterns (JEP 456)
• Statements Before super(...)
• String Templates

Java 23

• Implicitly Declared Classes and Instance main Methods

Java 25

• Primitive Types in Patterns, instanceof, and switch
• Module Import Declarations (JEP 507)
• Compact source files and instance main methods (JEP 512)
• Flexible constructor bodies (JEP 513)