Android Tutorial

Software Setup and Configuration

Android Studio

File Structure

Components

Core Topics

Layout

View

Button

Intent and Intent Filters

Toast

RecyclerView

Fragments

Adapters

Other UI Component

Image Loading Libraries

Date and Time

Material Design

Bars

Working with Google Maps

Chart

Animation

Database

Advance Android

Jetpack

Architecture

App Publish

App Monetization

Download and Install Java Development Kit (JDK) on Windows, Mac, and Linux

Downloading and installing the Java Development Kit (JDK) is crucial for Java development. Here's how you can do it for Windows, Mac, and Linux:

1. Windows:

a. Go to the official Oracle download page: https://www.oracle.com/java/technologies/javase-downloads.html

b. Choose the version of the JDK you wish to install. For general use, it's recommended to download the latest version.

c. Click on the "JDK Download" link for your chosen version.

d. Find the installer for Windows (usually .exe or .msi file) and download it.

e. Once downloaded, run the installer and follow the on-screen instructions.

f. After installation, you should set the JAVA_HOME environment variable:

  • Right-click on the Windows icon and select 'System'.
  • Click on 'Advanced system settings'.
  • Click on 'Environment Variables��'.
  • Under System Variables, click 'New��'.
  • Set 'Variable name' to JAVA_HOME and 'Variable value' to the path of your Java JDK directory (e.g., C:\Program Files\Java\jdk-xx.x.x).

g. Add the JDK's bin directory to the system path:

  • In the same 'Environment Variables' window, find the 'Path' variable, then click 'Edit��'.
  • Add a new entry: %JAVA_HOME%\bin.

2. Mac:

a. Go to the official Oracle download page: https://www.oracle.com/java/technologies/javase-downloads.html

b. Follow steps b-d from the Windows instructions but choose the macOS installer (.dmg file).

c. Open the downloaded .dmg file and drag the JDK content to the Applications folder.

d. The JDK should be installed at /Library/Java/JavaVirtualMachines.

3. Linux:

a. Go to the official Oracle download page: https://www.oracle.com/java/technologies/javase-downloads.html

b. Follow steps b-d from the Windows instructions but choose the Linux installer (.tar.gz for generic, .rpm for Red Hat-based distributions).

For .tar.gz:

c. Extract the tarball:

tar -xzf jdk-xx_linux-x64_bin.tar.gz

d. Move the extracted directory to /usr/lib/jvm:

sudo mv jdk-xx.x.x/ /usr/lib/jvm/

For .rpm:

c. Install the RPM package:

sudo rpm -ivh jdk-xx_linux-x64_bin.rpm

d. For both methods, you should set the JAVA_HOME environment variable:

  • Edit .bashrc or .bash_profile or the relevant shell initialization file:
nano ~/.bashrc
  • Add the following:
export JAVA_HOME=/usr/lib/jvm/jdk-xx.x.x
export PATH=$PATH:$JAVA_HOME/bin

e. Reload your profile:

source ~/.bashrc

For each platform, after installation, you can verify the JDK installation by running:

java -version

and

javac -version

Both commands should print the version of the Java runtime and compiler, respectively.

  1. Java JDK installation on Linux command line:

    • Description: Installing Java Development Kit (JDK) on Linux involves using package managers or manual installation from the official Oracle or OpenJDK distribution.

    • Code:

      # Using package manager (example with apt on Ubuntu)
sudo apt update
sudo apt install default-jdk

# Manual installation (example with Oracle JDK)
# Download JDK from Oracle website and extract
tar -zxvf jdk-<version>_linux-x64_bin.tar.gz
sudo mv jdk-<version> /usr/lib/jvm/
sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk-<version>/bin/java 1
sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk-<version>/bin/javac 1
Copyright © devanddep.com | All Rights Reserved