IDE Eclipse Hangs on startup

       Some times eclipse will be hanging on if we dont close the eclipse or system is not shutdown properly.

Then we can not open the eclipse again. Eclipse will be shown as blacked one and will be spining on same wheel.

Solution
          
           i. Force close the eclipse using Task Manager or kill Command   
          ii. Go to workspace directory.   
         iii. In workspace, Go to the hidden file called /.metadata/.plugins     /org.eclipse.core.resources/
          iv. Remove .snap file from this directory and start the eclipse