Similar Topics

20.6k+ articles

9.7k+ articles

6.4k+ articles

3k+ articles

1.8k+ articles

Java-Collections

1.1k+ articles

1k+ articles

400+ articles

Java-String-Programs

130+ articles

Java-Array-Programs

100+ articles

Java Programs

1.7k posts

Popular articles

Recent articles

Iterate Over the Characters of a String in Java

Last Updated: 28 February 2022

Given string str of length N, the task is to traverse the string and print all the characters of the given string.Illustration:Input : “GeeksforGeeks”Output : G e e k s f ...read more

Java-String-Programs

Java Programs - Java Programming Examples

Last Updated: 05 April 2023

Welcome to a collection of Java Programs and Examples! In this article, you'll find a variety of programming questions categorized as basic programs, control statements, a...read more

Iterate through List in Java

Last Updated: 19 April 2023

Lists in java allow us to maintain an ordered collection of objects. Duplicate elements as well as null elements can also be stored in a List in Java. The List interface i ...read more

Java-Collections

Similar Topics

20.6k+ articles

9.7k+ articles

6.4k+ articles

3k+ articles

1.8k+ articles

Java-Collections

1.1k+ articles

1k+ articles

400+ articles

Java-String-Programs

130+ articles

Java-Array-Programs

100+ articles

Java Program to Remove Duplicate Elements From the Array

Last Updated: 25 April 2023

An array is a collection of items stored at contiguous memory locations. The idea is to store multiple items of the same type together. For simplicity, we can think of an ...read more

Java-Array-Programs

How to Iterate HashMap in Java?

Last Updated: 16 October 2021

HashMap is a part of Java’s collection providing the basic implementation of the Map interface of Java by storing the data in (Key, Value) pairs to access them by an index ...read more

Factory method design pattern in Java

Last Updated: 29 August 2022

It is a creational design pattern that talks about the creation of an object. The factory design pattern says that define an interface ( A java interface or an abstract cl...read more

Write From Home

Convert a String to Character Array in Java

Last Updated: 03 April 2023

Here we are converting a string into a primitive datatype. It is recommended to have good knowledge of Wrapper classes and concepts like autoboxing and unboxing as in java ...read more

Java-String-Programs

Min Heap in Java

Last Updated: 29 March 2023

A Min-Heap is a complete binary tree in which the value in each internal node is smaller than or equal to the values in the children of that node.Mapping the elements of a ...read more

java-priority-queue

How to remove all white spaces from a String in Java?

Last Updated: 22 May 2023

Given a string with white spaces, the task is to remove all white spaces from a string using Java built-in methods.Examples:Input: str = " Geeks for Geeks " ...read more

Convert Double to Integer in Java

Last Updated: 30 August 2022

Given a Double real number. Write a Java program to convert the given double number into an Integer (int) in Java.Examples:Input: double = 3452.234Output: 3452Input: doubl ...read more

Technical Scripter

Technical Scripter 2018

Initializing a List in Java

Last Updated: 11 January 2023

The Java.util.List is a child interface of Collection. It is an ordered collection of objects in which duplicate values can be stored. Since List preserves the insertion o...read more

Technical Scripter

Java - util package

Java-List-Programs

Implementing a Linked List in Java using Class

Last Updated: 21 September 2023

Pre-requisite: Linked List Data StructureLike arrays, Linked List is a linear data structure. Unlike arrays, linked list elements are not stored at the contiguous location...read more

Data Structures

Java-Class and Object

Java-List-Programs

Traverse Through a HashMap in Java

Last Updated: 19 July 2022

HashMap stores the data in (Key, Value) pairs, and you can access them by an index of another type. HashMap class implements Map interface which allows us to store key. ha...read more

Java - util package

Java-Map-Programs

Java program to count the occurrence of each character in a string using Hashmap

Last Updated: 01 December 2022

Given a string, the task is to write a program in Java which prints the number of occurrences of each character in a string.Examples:Input: str = "GeeksForGeeks"Output:r 1 ...read more

Java Program to find largest element in an array

Last Updated: 31 January 2023

Given an array, find the largest element in it.Input : arr[] = {10, 20, 4}Output : 20Input : arr[] = {20, 10, 20, 4, 100}Output : 100Method 1: Iterative Way[tabby title="J ...read more

1 2 3 4 5 6 7 8 >>