stack class in java
import java.util.Stack; class Main { public static void main(String[] args) { Stack<String> animals= new Stack<>(); // Add elements to Stack animals.push("Dog"); animals.push("Horse"); // Remove element from Stack animals.pop(); // Access element from top of Stack animals.peek(); } }
stack in java
// Java code for stack implementation import java.io.*; import java.util.*; class Test { // Pushing element on the top of the stack static void stack_push(Stack<Integer> stack) { for(int i = 0; i < 5; i++) { stack.push(i); } } // Popping element from the top of the stack static void stack_pop(Stack<Integer> stack) { System.out.println("Pop Operation:"); for(int i = 0; i < 5; i++) { Integer y = (Integer) stack.pop(); System.out.println(y); } } // Displaying element on the top of the stack static void stack_peek(Stack<Integer> stack) { Integer element = (Integer) stack.peek(); System.out.println("Element on stack top: " + element); } // Searching element in the stack static void stack_search(Stack<Integer> stack, int element) { Integer pos = (Integer) stack.search(element); if(pos == -1) System.out.println("Element not found"); else System.out.println("Element is found at position: " + pos); } public static void main (String[] args) { Stack<Integer> stack = new Stack<Integer>(); stack_push(stack); stack_pop(stack); stack_push(stack); stack_peek(stack); stack_search(stack, 2); stack_search(stack, 6); } }
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