Java cheatsheets
Primitive Data Types
Non-object data types supported by Java.
More >>String
Reference data type for storing text data, which has some properties of primitive data types.
More >>Input/output
Printing data to CLI output, and prompting users of the program to input data.
More >>Object-Oriented Programming
Usage of classes, interfaces, enums, access modifiers, and other elements of OOP.
More >>Loops and Iteration
Usage of loops and other ways to iterate on arrays, Strings, Collections.
Coming soon...Streams
Create a sequence of elements from numbers, an array or a collection, and execute sequential or parallel operations on it. Often used to replace loops in Java 11 and higher.
Coming soon...Array
The most basic data structure to store multiple piece of data of the same type.
Coming soon...Lists
The most common Collection types, used to store elements in a fixed order.
Coming soon...Maps
Collections to store data organized into key-value pairs.
Coming soon...