Create An Array Of Strings And Use A Stack To Reverse The Or
Create An Array Of Strings And Using A Stack Reverse The Order Of Th
Create an array of Strings, and using a stack, reverse the order of the Strings in the array. For example, the strings in the array might be “Joe”, Fred, “Mary”. The reversed array would be “Mary”, Fred, “Joe”. You should create a Stack class and a StackElement class for this assignment, then use these classes in your software. Your stack should be a linked data structure, similar to a linked list. The main method should initialize an array of Strings – either with an explicit array declaration or by reading the data from a file. You should have at least five Strings in your array, but the software should work no matter how many Strings are in the array. Your stack class should maintain a stack pointer and the size of the stack, and should have methods to: Push a new element onto a stack (This method should put data onto the stack, which means it must first put the data in a stack element.) Pop an element off the stack and return the data in the element. Print a list of the data in the stack. Return the current stack size. Please use netbeans on this assignment.
Paper For Above instruction
Reversing an Array of Strings Using a Linked Stack in Java
Reversing an array of strings is a common programming task that can be efficiently implemented using a stack data structure. The use of a stack, following the Last-In-First-Out (LIFO) principle, makes it straightforward to reverse the order of elements. In this paper, I will explain how to implement a stack as a linked data structure in Java, define the required classes, and demonstrate how to utilize this stack to reverse an array of strings.
The implementation involves creating two classes: Stack and StackElement. The StackElement class will serve as a node in the linked list, holding the string data and a reference to the next element. The Stack class will manage these elements through a stack pointer and a size tracker, providing methods for push, pop, printStack, and getSize.
Designing the Stack Structure
The StackElement class encapsulates the data for each node in the stack:
- String data
- Reference to the next StackElement
The Stack class maintains:
- A reference to the top StackElement (stack pointer)
- An integer for the current size of the stack
Methods include:
- push(String data): Creates a new StackElement with the provided data, links it to the current top, and updates the stack pointer and size.
- pop(): Removes the top element, returns its data, and updates the stack pointer and size.
- printStack(): Displays all elements from top to bottom.
- getSize(): Returns the current number of elements in the stack.
Implementation and Demonstration
The main method initializes an array of at least five strings. It then pushes each string onto the stack. Once all elements are in the stack, it pops them out – effectively reversing their order – and stores them in a new array or prints them directly to demonstrate the reversal.
This approach is scalable and works with any number of strings. The linked list-based stack ensures efficient operations with constant time complexity for push and pop. Using this method, the order of elements in the array is successfully reversed, illustrating the stack's utility.
Conclusion
Implementing a stack as a linked list for reversing strings demonstrates fundamental data structure concepts. The design emphasizes encapsulation and dynamic memory management, which are important in real-world applications. The Java implementation in NetBeans aligns with best practices in object-oriented programming and provides a clear pathway for similar problems involving stack-based reversals.
References
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- Java Documentation (Oracle). Java Stack Implementation Details. https://docs.oracle.com/javase/tutorial/collections/stack.html
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