Installing Java Development Environment

1) java se run time environment downloads (google phrase)

http://www.oracle.com/technetwork/java/javase/downloads/java-se-jre-7-download-432155.html
download and install

2) JDK se (Standard edition)
Ensure that jre and jdk versions match
http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

3)Eclipse java ide
http://www.eclipse.org/downloads/