Final answer:
To install a decompiler in Eclipse without the Marketplace, go to 'Help' > 'Install New Software...', input the update site URL, select the plugin, and complete the installation process with a restart of Eclipse.
Step-by-step explanation:
To install a decompiler in Eclipse without using the Marketplace, you will need to follow these steps:
- Open Eclipse and go to Help > Install New Software....
- In the Work with: field, enter the update site URL for the decompiler plugin you want to install.
- Press Enter and wait for the site to load. Then, select the decompiler plugin.
- Click Next, review the items to install, and click Next again.
- Accept the license terms and click Finish. Eclipse will then download and install the plugin.
- Restart Eclipse to complete the installation.
Be sure to source the update site URL from a reliable location, such as the official webpage or documentation of the decompiler you wish to install. Remember that manually installing plugins may pose security risks if the source is not trusted.