How To Check If I Have Java Installed Windows 7

Java is a programming linguistic communication that is platform-independent, popular, uncomplicated, secure, and statically typed. Earlier discussing let's clear Java language needs a runtime platform so before going ahead let'southward articulate how java is present on the auto.

Java language comprises three components mainly:

• Java Evolution Kit
• Java Runtime Environment
• Java Virtual Auto
  

Runtime Concepts than only we volition check whether Java is there on the Platform (Operating System + Architecture)

one. Java Virtual Motorcar

This is a motorcar–specific software which is responsible for byte code on that machine and converts information technology into automobile-specific instructions.

JVM is different for Windows  JVM is unlike for Linux JVM is different for Different Platforms        

And then as a programmer we don't need to cheque presence on the machine as it is pre-installed in the machine. It is responsible for running Java code line past line.

two. Java Runtime Environment

It is simply a package that provides an environment to only run our java code on the motorcar. No evolution takes identify here because of the absenteeism of developmental tools.

iii. Java Development Kit

It is also a packet that provides an environment to develop and execute where JRE is a part of it forth with developmental tools.

• JDK = JRE + Developmental Tools
• JRE = JVM + Library Classes

Now, The first and Foremost step is to check the Java Development Kit in Windows which is also known every bit JDK. There are lots of versions of Java. Depending upon the operating system methods there are several methods to notice the version of Installed JAVA on your Machine:

Let us discuss three standard methods in Windows

1. User needs to open Command Prompt and enter- 'java -version'
2. Open control panel and lookup for Coffee
3. Directories method- Click the Menu 'Start' and typing Most.java or readme file

Taking i past 1, showcasing in-depth individually

one. Command Prompt

The CMD (Command Interpreter is a command-line Interface. It supports a set of commands and utilities; and has its own programming linguistic communication for writing batch files. Open CMD and search java -version. Get-go, we accept to an surroundings variable to the installed path location of the coffee folder. Otherwise, it will bear witness invalid command. It is chosen 'Terminal' in the case of mac operating systems.

coffee -version  // CMD/Terminal control to bank check coffee version on the machine        

In the case of Windows Bone: It is showing java is installed on the auto with version i.viii.0 (Encounter carefully at line number 5)

"1.eight.0_144" is the version of the java

In the case of macOS: It is showing java is installed on the machine with version 14.0.one ( see carefully at line number ii)

Second Method:

• Open Command Panel and there is an option of the java on the interface of the command panel
• Click on the java choice and click almost a small pop window will appear

In the case of Windows:

In the case of Mac: Click on the Java icon downside. System preferences in mac are the aforementioned equally the Control panel in Windows.

Tertiary Method:

Search Program and features in the control panel and search JAVA Named option

In the example of Windows: Simply custom search- About Java

In the case of Mac:

Printing the command button followed by a spacebar without lifting fingers from the command button.

A popup box will appear for less than a 2nd followed by some other popular-upward equally shown below:

Source: https://www.geeksforgeeks.org/different-ways-to-check-java-version-in-windows/

Posted by: pylantthereave.blogspot.com

Share this post