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An immutable class is a class whose object cannot be modified once created. Any effort to modify the object will result in the creation of another immutable object.For instance, String class is an immutable class. Once an String object is created, an effort to alter that object results in the creation of another String object. The immutable object can be...

Binary Search Tree, is a node-based binary tree data structure which has the following properties: The left subtree of a node contains only nodes with keys lesser than the node’s key. The right subtree of a node contains only nodes with keys greater than the node’s key. The left and right subtree each must also be a binary search tree....