Java Quick Reference - Language Fundamentals

Language Fundamentals

Operators and Assignments

Flow Control and Exceptions

Declarations and Access Control

Garbage Collection

Overloading and Overriding

Threads

The java.lang Package

The java.util Package

The java.awt Package

The java.io Package

References

Miscellaneous Notes

Tips & Traps

Mock Exams

Language Fundamentals - Class Literals

class literals are created by appending .class to the name of a primitive or reference type

    System.out.println(int.class);    
    // output: int
    System.out.println(System.class); 
    // output: java.lang.System

    int i = 5;
    String s = "Hello";
    
    System.out.println(i.class);  // compile error
    System.out.println(s.class);  // compile error