Stack - Java

Stack - Java

Java Programming

Stacks Class

This class contain max size of stack array, top of element, and stack array for String value.
public class Stacks { private int maxSize; private int top; private String[] stackArray;

Stacks Method

This method is used for initializing a size of stack array. It's make an array with stack mode. This method used a LIFO (Last in First out) mode.
public Stacks(int size){ maxSize=size; stackArray=new String [maxSize]; top=-1; }

Push Method

Push method is used for inserting a value for stack array.
public void push(String item){ stackArray[++top]=item; }

Pop Method

Pop method is used for removing a value for stack array.
public String pop(){ return stackArray[top--]; }

Peek Method

This method used to retrieve or fetch the first element of the stack array or the element present at the top of stack array.
public String peek(){ return stackArray[top]; }

Is Empty Method

This method is for checking an array and operating an array with no items in array.
public boolean isEmpty(){ return (top==-1); }

Is Full Method

This method is for checking an array and operating an array with items in array. So it's same with max size an stack array.
public boolean isFull(){ return (top==maxSize-1); }

Main Method

Main method used for operating this stack array like inserting value and removing value in stack array.
public static void main(String[] args) { Stacks theStack=new Stacks(10); System.out.println(">>> Push Some Items!"); theStack.push("Honey"); theStack.push("Are"); theStack.push("My"); theStack.pop(); theStack.push("You"); System.out.println(">>> Pop Items in the Stack"); while(!theStack.isEmpty()){ String value=theStack.pop(); System.out.println(value+" "); } } } //End of Class//