Stack lastIndexOf() method in Java with Example Last Updated : 24 Dec, 2018 Summarize Comments Improve Suggest changes Share Like Article Like Report The Java.util.Stack.lastIndexOf(Object element) method is used to check and find the occurrence of a particular element in the Stack. If the element is present in the Stack then the lastIndexOf() method returns the index of last occurrence of the element otherwise it returns -1. This method is used to find the last occurrence of a particular element in a Stack. Syntax: Stack.lastIndexOf(Object element) Parameters: The parameter element is of type Stack. It refers to the element whose last occurrence is required to be checked. Return Value: The method returns the position of the last occurrence of the element in the Stack. If the element is not present in the Stack then the method returns -1. The returned value is of integer type. Below programs illustrate the Java.util.Stack.lastIndexOf() method: Program 1: Java // Java code to illustrate lastIndexOf() import java.util.*; public class StackDemo { public static void main(String args[]) { // Creating an empty Stack Stack<String> stack = new Stack<String>(); // Use add() method to add elements in the Stack stack.add("Geeks"); stack.add("for"); stack.add("Geeks"); stack.add("10"); stack.add("20"); // Displaying the Stack System.out.println("Stack: " + stack); // The last position of an element is returned System.out.println("Last occurrence of Geeks is at index: " + stack.lastIndexOf("Geeks")); System.out.println("Last occurrence of 10 is at index: " + stack.lastIndexOf("10")); } } Output: Stack: [Geeks, for, Geeks, 10, 20] Last occurrence of Geeks is at index: 2 Last occurrence of 10 is at index: 3 Program 2: Java // Java code to illustrate lastIndexOf() import java.util.*; public class StackDemo { public static void main(String args[]) { // Creating an empty Stack Stack<Integer> stack = new Stack<Integer>(); // Use add() method to add elements in the Stack stack.add(10); stack.add(22); stack.add(3); stack.add(10); stack.add(20); // Displaying the Stack System.out.println("Stack: " + stack); // The last position of an element is returned System.out.println("Last occurrence of 10 is at index: " + stack.lastIndexOf(10)); System.out.println("Last occurrence of 20 is at index: " + stack.lastIndexOf(20)); } } Output: Stack: [10, 22, 3, 10, 20] Last occurrence of 10 is at index: 3 Last occurrence of 20 is at index: 4 Comment More infoAdvertise with us Next Article Stack trimToSize() method in Java with Example C code_r Follow Improve Article Tags : Java Java-Collections Java - util package Java-Functions Java-Stack +1 More Practice Tags : JavaJava-Collections Similar Reads Stack remove(Object) method in Java with Example The Java.util.Stack.remove(Object o) method is used to remove any particular element from the Stack. 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Return Value: It doe 2 min read Stack lastIndexOf(Object, int) method in Java with Example The Java.util.Stack.lastIndexOf(Object element, int last_index) method is used to the last index of the first occurrence of the specified element in this Stack, searching forwards from last index, or returns -1 if the element is not found. More formally, returns the lowest last index i such that (i 3 min read Stack toString() method in Java with Example The toString() method of Java Stack is used to return a string representation of the elements of the Collection. The String representation comprises a set representation of the elements of the Collection in the order they are picked by the iterator closed in square brackets[].This method is used mai 2 min read Stack size() method in Java with Example The Java.util.Stack.size() method in Java is used to get the size of the Stack or the number of elements present in the Stack. Syntax: Stack.size() Parameters: The method does not take any parameter. Return Value: The method returns the size or the number of elements present in the Stack. Below prog 2 min read Stack capacity() method in Java with Example The capacity() method of Stack Class is used to get the capacity of this Stack. That is the number of elements present in this stack container. Syntax: public int capacity() Parameters: This function accepts a parameter E obj which is the object to be added at the end of the Stack. Return Value: The 2 min read Stack setElementAt() method in Java with Example The setElementAt() method of Java Stack is used to set the component at the specified index of this vector to be the specified object. The previous component at that position is discarded. The index must be a value greater than or equal to 0 and less than the current size of the vector. Syntax: publ 2 min read Like