stacks in java <br>A stack class in Java aids in the implementation of a stack data structure. This class may also be referred to as a subclass of the vector. As we are aware, in addition to push and pop operations, the stack also adheres to the last in, first out rule. According to the principle of last in, first out (LIFO), any element that is added to the top of the stack will also be taken away from it. Java\s stack class has three additional methods: empty, search, and peek.