In a world where Java is so widely used that even Google has to add Java support to its Chrome browser, it can sometimes feel like Java is still missing.
This article explains how to get Java on your system and what to do if you don’t have Java installed.
This can be handy for people who don’t want to use Java on their computers, and are looking for something that is portable.
First, download and install Java 7: Download the Java 7 binary (32-bit or 64-bit) from the Oracle website.
It is the most popular version of Java.
You can download a 32-bit version from the official Oracle download site.
Or, you can download the 64-bits version from Oracle’s site.
The 64- bits version is much faster, and is the one you want to download.
If you want Java to work with older versions of Windows, you will need to run a 64- bit version of Windows.
Install Java 7 (32, 64 or 128-bit versions): Click the Start menu (upper left corner of the screen).
Choose Search from the menu bar.
Type java.net in the search box.
Type in the directory where you downloaded the Java files.
If the search results show Java 7 or Java 8, click on Install.
When Java 7 is installed, it will ask you to verify that you have Java on the machine.
If your computer is a 64 or 32- bit computer, you should have Java 7 installed on it.
If not, you need to click on the Verify button.
Java 8 is a more recent version of the Java software.
This version is required for some Windows-based programs, like the Windows Media Player and the Internet Explorer browser.
If Java 8 isn’t installed, you might need to upgrade your computer.
Open Java and check to make sure you have the latest version.
Java will install on the Windows system and it will take a few minutes to complete the installation.
You will then need to restart the computer.
Java 7 will take about a minute to complete, and Java 8 will take another minute.
This is why it is recommended that you restart the machine before starting Java.
Once Java 7 has finished installing, you may have to wait for the system to boot.
If this happens, open up your Terminal application and type java -version to see the version number.
If it shows 8.0.3 (Java 7) or 8.1.2 (Java 8), you have installed Java 7.
If there are no 8.2.0 or 8 and 1.1, you have not installed Java 8.
After Java 7 finishes installing, it may take up to 30 minutes for Java to fully install.
Java installs a program called “javac” which is the program that is responsible for managing the Java application that runs on your computer and its dependencies.
You should always run java -v to verify if your system has Java installed correctly.
If so, Java will ask for the name of the program you want the system administrator to run.
The administrator should then run java and wait for Java’s response.
If java responds with an error, then you should restart your computer to complete any remaining tasks.
To uninstall Java, use the uninstall command in your Terminal window.
If no error message appears, the command will uninstall Java and leave the system.
If an error appears, then Java is currently installed on your machine and will be removed from your system shortly.
If a newer version of a Java program is available, then it will be installed on the next reboot.
This step will take some time, so it is usually a good idea to wait until your computer reboots.
Java does not require that your system be rebooted after installing Java.
To remove Java, open the command prompt in your favorite text editor and type the command sudo java -uninstall java and hit enter.
This command will remove Java.
Java can also be installed and uninstalled as you would any other software, so you should be able to find the appropriate command by typing the command java -get java -help.
You may also want to check the Java version number in the system logs.
You also need to ensure that you can log into your computer, as this will allow you to monitor the installation progress.
The Java installer will then install a small file named javac.exe in the root of the installation folder.
This file is used to install the Java program and other files required to run it.
This program will take the root directory of the current installation folder and install all of Java’s dependencies.
This process is known as the “bootstrapping” step.
After the installation is complete, Java 7’s executable will be in the same directory as the javadoc.jar file.
The following image shows how the Java installer installs and launches the Java executable.
Click here to view the full size image.
Java downloads a file called jav