JDK Configuration on Eclipse

To configure JDK on Eclipse, 

• click "Window" on top menu of the Eclipse and click Preferences at bottom
• expand "Java" menu at the left and click "Installed JREs"
• click "Add" button at right, select "Standart VM" and click next
• click "Directory" button at the top and select the root folder of the jdk
• like: C:\Program Files\Java\jdk1.6.0_35
• or C:\Program Files\Java\jdk1.7.0_07
• it should list so many jar files. now just click "Finnish" button
• the JDK that you added must appear in the list. select the checkbox nex to it
• then click "OK"