Question

What would be the return value of new in java in case of insufficient memory? I have the following code

TreeNode newNode = new TreeNode(n);
if(newNode == null)
    return false;

eclipse says that it is a dead code. How should we check for memory error in java?

Answer 1

OutOfMemoryError will be thrown.

http://docs.oracle.com/javase/6/docs/api/java/lang/OutOfMemoryError.html

Thrown when the Java Virtual Machine cannot allocate an object because
it is out of memory, and no more memory could be made available by the
garbage collector.