How can I find out if a specific Eclipse instance on my (Windows 7) PC is the 32-bit or 64-bit version?
I've checked the About screen and the maze of dialogs one can call from there, but I didn't find any clues.
Also, right-clicking eclipse.exe in Windows explorer and opening the properties dialog box didn't give any hints.
This question is related to
eclipse
windows-7
32bit-64bit
Go to the Eclipse base folder ? open eclipse.ini ? you will find the below line at line no 4:
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20150204-1316 plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.200.v20120913-144807
As you can see, line 1 is of 64-bit Eclipse. It contains x86_64 and line 2 is of 32-bit Eclipse. It contains x_86.
For 32-bit Eclipse only x86 will be present and for 64-bit Eclipse x86_64 will be present.
Help -> About Eclipse -> Installation Details -> tab Configuration
Look for -arch, and below it you'll see either x86_64 (meaning 64bit) or x86 (meaning 32bit).
In Linux, run file on the Eclipse executable, like this:
$ file /usr/bin/eclipse
eclipse: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.4.0, not stripped
Open eclipse.ini in the installation directory, and observe the line with text:
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.0.200.v20090519 then it is 64 bit.
If it would be plugins/org.eclipse.equinox.launcher.win32.win32.x86_32_1.0.200.v20090519 then it is 32 bit.
Source: Stackoverflow.com