Stack setSize() method in Java with Example Last Updated : 24 Dec, 2018 Comments Improve Suggest changes Like Article Like Report The setSize() method of Java.util.Stack class changes the size of this Stack instance to the size passed as the parameter. Syntax: public void setSize(int size) Parameters: This method takes the new size as a parameter. Exception: This method throws ArrayIndexOutOfBoundsException if the new size is negative. Below are the examples to illustrate the setSize() method. Example 1: Java // Java program to demonstrate // setSize() method for Integer value import java.util.*; public class GFG1 { public static void main(String[] argv) { try { // Creating object of Stack<Integer> Stack<Integer> stack = new Stack<Integer>(); // adding element to stack stack.add(10); stack.add(20); stack.add(30); stack.add(40); // Print the Stack System.out.println("Stack: " + stack); // Print the current size of Stack System.out.println("Current size of Stack: " + stack.size()); // Change the size to 10 stack.setSize(10); // Print the current size of Stack System.out.println("New size of Stack: " + stack.size()); } catch (Exception e) { System.out.println("Exception thrown : " + e); } } } Output: Stack: [10, 20, 30, 40] Current size of Stack: 4 New size of Stack: 10 Example 2: Java // Java program to demonstrate // setSize() method for String value import java.util.*; public class GFG1 { public static void main(String[] argv) { try { // Creating object of Stack<Integer> Stack<String> stack = new Stack<String>(); // adding element to stack stack.add("A"); stack.add("B"); stack.add("C"); stack.add("D"); // Print the Stack System.out.println("Stack: " + stack); // Print the current size of Stack System.out.println("Current size of Stack: " + stack.size()); // Change the size to -1 stack.setSize(-1); // Print the current size of Stack System.out.println("New size of Stack: " + stack.size()); } catch (Exception e) { System.out.println("Exception thrown : " + e); } } } Output: Stack: [A, B, C, D] Current size of Stack: 4 Exception thrown : java.lang.ArrayIndexOutOfBoundsException: -1 Comment More infoAdvertise with us Next Article Stack setSize() 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 isEmpty() method in Java with Example The Java.util.Stack.isEmpty() method in Java is used to check and verify if a Stack is empty or not. 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