Better if you search for the link...
32 bit: https://www.eclipse.org/downloads/download.php?file=/technology/epp/downloads/release/neon/2/eclipse-jee-neon-2-win32.zip
64 bit: https://www.eclipse.org/downloads/download.php?file=/technology/epp/downloads/release/neon/2/eclipse-jee-neon-2-win32-x86_64.zip
JDK for 32/64 bit: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
Adding Window Builder:
1. Open Eclipse
2. Go to Help & Select Install New Software..
3. Paste the link in the box beside work with..
LINK: http://download.eclipse.org/windowbuilder/WB/integration/4.6/
4. Click on “ADD” Then you will see a Box. Write any name there and click OK.
5. Then you will see WindowBuilder in the BOX. Select WindowBuilder and Click Next…
6. Then Yes/I Agree/Next/Install/OK....