Java Programming Cheat Sheet

Cloudytechi
2 min readSep 28, 2021

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Java is among the best programming dialects. It is an amazing and adaptable programming language that has a wide scope of utilizations. Here, with this Java cheat sheet, we expect to convey a thorough Java reference.

Since this Java cheat sheet will be a long article covering a wide cluster of Java themes, it’s great to have a chapter-by-chapter guide. This will simplify it to search for a particular Java point instead of going to and fro the whole Java cheat sheet.

Syntax:-

Java Characteristics

Let’s start the Java cheat sheet with the important points about Java:

  • Java is an object-oriented programming language.
  • It is the most powerful and widely used programming language.
  • Since it is open-source, everyone can use Java for free.
  • Cross-platform availability.
  • Its byte code is platform-independent.
  • Garbage collected language.
  • Supports multithreading.
  • It is a statically typed language, which ensures fast performance.

Data Types in Java

Primitive Data Type:-

These are the data types that can not be divided further. These are also known as atomic data types.

Non-primitive Data Type:-

They are divided into 4 types:

  • Array
  • String
  • Class
  • Interface

Type Casting

Typecasting is a method in Java by which the data type of one variable gets converted into another data type. There are 2 types of typecasting:

  1. Implicit typecasting: In implicit typecasting, the Java Compiler itself changes the data type of a variable without any user intervention.
  2. Explicit Typecasting: In explicit typecasting, the user is responsible for changing the data type of a variable from one to another using reserved words.

Variables in Java

A variable or identifier is the name given to an article, which is put away at a specific location. With the variable, we can get to that article or its worth without any problem. In Java, there are 3 sorts of factors:

Example:

Know more by going through the blog on java programming cheatsheet. This blog covers all the syntax.

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Cloudytechi
Cloudytechi

Written by Cloudytechi

A tech guy who is more enthusiastic of programming and love coding.

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