anomaly2104 / cache-low-level-system-design

Low level deisgn for cache system

Low Level Designs:

Topic	Video
	https://youtu.be/7IX84K9g23U
	https://youtu.be/Yn7C0x5ozx4
	https://youtu.be/RVHNcng0oF0
	https://youtu.be/B7iCXl_KSoM
	https://www.youtube.com/watch?v=WUhtVmHr0EM&list=PL564gOx0bCLp8Mqv3nlE8QP8UaX0hKkEA
	https://www.youtube.com/watch?v=Xny0IdvJ-1M&list=PL564gOx0bCLpAL7yMJqOuK3_hBuLkyRhn

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cache-low-level-system-design's Issues

DoublyLinkedList.java

In class DoublyLinkedList, the method detachNode(),
Here we need to check the node that we are deleting having prev and next not null as:
case 1 :
if(node.prev!=null){
node.prev.next = node.next;
}else{
dummyHead = node.next; // if the node is head then we need to move the head .
}
case 2 :
if(node.next!=null){
node.next.prev = node.prev;
}else{
dummyTail = node.prev; // if the node is tail then we need to move the tail.
}