When are statements after the method call itself going to execute?

private void inorderHelper(TreeNode node)
{
    if ( node==null )
        return;
    inorderHelper(node.leftNode);
    System.out.printf("%d", node.data);
    inorderHelper(node.rigthNode);
}

All I can see is that the line of codes inorderHelper(node.leftNode) will continue to iterate until node == null and the method terminates immediately before node.data is printed. I think that I didn't get well recursion but all examples I can find doesn't have statements after the recursive call. All I want to know is when are statements like System.out.printf("%d",node.data) going to execute before the method return?