Could not reserve enough space for object heap

Question

I am getting the following exception repeatedly each time I try to run the program.

Error occurred during initialization of VM

Could not reserve e

Answer 1

Suppose your class is called Test in package mypackage. Run your code like this:

java -Xmx1024m mypackage.Test

This will reserve 1024 MB of heap space for your code. If you want 512 MB, you can use:

java -Xmx512m mypackage.Test

Use little m in 1024m, 512m, etc