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Browse Courses//Checking the string is palindrome or not by using stack and queue class Palindrome { public static void main(String args[]) { String str=”madam”; Queue<Charcter> q=new LinkedList<>(); Stack<Character> s=new Stack(); for(char ch:str.toCharArray())//ch=m { q.add(ch);//m s.push(ch);//m } boolean isPalindrome=true; while(!q.isEmpty())//false { if(q.remove()!=s.pop()) { isPalindrome=false; break; } } if(isPalindrome)//true System.out.println(str +”is […]
import java.util.*; class ASC { static int count(int num) //num=0 { if(num==0)//0==0(f) return 0; else return 1+count(num/10);1/10 } public static void main(String args[]) { int num=12345; int result=count(num);//5 System.out.println(result);//5 } }
Add and display the elements(4 elements) using HashSet, check if an element exists there in a hashset,remove the element.. Find the smallest and largest element(number) using treeset class Display { public static void main(String args[]) { HashSet<String> a=new HashSet<String>(); a.add(“apple”); a.add(“mango”); a.add(“banana”); a.add(“apple”); //apple mango banana System.out.println(“mango is there..”+a.contains(“mango”)); a.remove(“mango”); […]
Here’s a simple Java program that converts a given integer into its word representation, printing each digit’s corresponding English word in the same order. ✅ Java Program: Convert Number to Words import java.util.Scanner; public class NumberToWords { // Array to store words for digits 0-9 static String[] digitWords = { “zero”, “one”, “two”, […]
Write a program to find the second largest element in the array class Array { public static void main(String args[]) { int arr[]=new int[5]; //50 10 20 60 55 0 1 2 3 4 int i; Scanner s=new Scanner(System.in); for(i=0;i<arr.length;i++) { arr[i]=s.nextInt();// to fill the values in an array } int fmax=arr[0]; //50 […]
//Final class==> //final class cannot be extended(no any subclass can able to inherit it) Example program import java.io.*; final class Shape { void draw() { System.out.println(“Drawing shape..”); } } class Finalmethod { public static void main(String args[]) { Shape obj=new Shape(); obj.draw(); } }
Here’s a simple Java program that accepts the number of late days and calculates the fine or displays the membership cancellation message: import java.util.Scanner; public class LibraryFine { public static void main(String[] args) { Scanner sc = new Scanner(System.in); // Input number of late days System.out.print(“Enter number of days late: “); int […]
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