A cell phone equipped with a Java language interpreter can be used as a miniature computer on which you can play games and run simple applications. They can be stored in the device's built-in data storage or on a removable memory card.
Instructions
Step 1
Make sure the JAR file you intend to install on your phone is not malicious. To do this, download it from your computer and send it to the following site for verification:
www.virustotal.com/
A file can be considered safe only if none of the antiviruses presented on this resource suspected the presence of a virus in it.
Step 2
If the phone is not a smartphone, and it does not have a memory card, download the file using its built-in browser. Be sure to configure the machine so that the Access Point Name (APN) starts with internet, not wap. Before downloading, make sure that the site from which you are going to download the file is not in the list of resources with increased traffic rates (you can find such a list on the official website of the operator). If it is on this list, traffic will be expensive even if you have unlimited Internet access. After downloading and confirming the installation, the JAR file will be installed automatically. Look for it in the Games menu folder, and if you don’t find it there, in the Applications folder.
Step 3
If the phone has a memory card, disconnect it, remove the card and transfer it to the card reader, find a folder on it called Java, J2ME, Games or similar, then, after correctly disconnecting the card reader from the computer, transfer the card back to the phone and turn it on. Make sure the program you just installed appears in the Games or Applications menu folder.
Step 4
Symbian smartphones require JAR files to be installed in a manner similar to that used for SIS files. Place the file in any folder of the memory card, and then, after moving the card back to the phone, use the file manager to find this file and run it for execution. Answer all questions in the affirmative, specify the memory card as the installation location. The installed program will appear, depending on the phone model, in the "My applications" folder. or "Applications" - "Installed". On older devices, it may appear in the root folder of the menu.
Step 5
Older phones refuse to run a JAR file if there is no JAD file next to it. Download the latter from the same site from which you downloaded the program itself, and place it in the same folder.
Step 6
If, while the game or application is running, the Java machine prompts you to send an SMS, answer it negatively. Close the application immediately by pressing the end call button, and then delete the JAR file that turns out to be malicious.
