java.lang.OutOfMemoryError: Java heap space

Question

I am getting the following error on execution of a multi-threading program

java.lang.OutOfMemoryError: Java heap space

The above error occu

Answer 1

You can get your heap memory size through below programe.

public class GetHeapSize {
    public static void main(String[] args) {
        long heapsize = Runtime.getRuntime().totalMemory();
        System.out.println("heapsize is :: " + heapsize);
    }
} 

then accordingly you can increase heap size also by using: java -Xmx2g http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html