Setting/Increase JVM heap size on Eclipse

java programs executes in JVM uses Heap of memory to manage the data. If your Java program requires a large amount of memory, it is possible that the virtual machine will begin to throw OutOfMemoryError instances when attempting to instantiate an object. The default heap size if 1 MB and can increase as much as 16 MB.

Setting/Increase JVM heap size on Eclipse

Right click on the main program -

run-configuration->-ArgumentTab->Inside VM   and insert the paramter.

-Xms<size>        set initial Java heap size

-Xmx<size>        set maximum Java heap size

such as  

-Xms 510 -Xmx 2048

--click on on apply and run the program.

Thanks