Explain what, if anything, is wrong with the following code A.The code is designed to print to the console a chain of nodes thatbegins with firstNode.
Node currentNode = firstNode;
while(currentNode.next!=null) {
System.out.println(currentNode.data);
currentNode = currentNode.next;
}
Explain what, if anything, is wrong with the following code B.The code is designed to double the data stored in a chain of nodesthat begins with firstNode.
Node<Integer> currentNode = firstNode;
while(currentNode!=null) {
currentNode.data = currentNode.data * 2;
}
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