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Java-String-Programs

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Java Program to Check Whether the String Consists of Special Characters

Last Updated: 28 November 2024

In Java, special characters refer to symbols other than letters and digits, such as @, #, !, etc. To check whether the String consists of special characters, there are mul...read more

Java Program to Print all Unique Words of a String

Last Updated: 17 October 2022

Java program to print all unique words present in the string. The task is to print all words occurring only once in the string.Illustration:Input : Welcome to Geeks for G...read more

Java Program to Find All Palindromic Sub-Strings of a String

Last Updated: 03 August 2022

Given a string, the task is to count all palindrome substring in a given string.Input : abaOutput : 4Explanation : All palindrome substring are : "aba" , "a"...read more

Java Program to Move All Uppercase Characters to the End

Last Updated: 31 March 2023

Given a string that contains uppercase letters as well as lower case letters. The task is to move all uppercase characters at the end of the String. The uppercase characte...read more

Java Program to Find the Occurrence of Words in a String using HashMap

Last Updated: 19 December 2021

HashMapKey, Value provides the basic implementation of the Map interface of Java and import java.util.HashMap package or its superclass. HashMap stores the data in (Key, V...read more

Java Program to Add Two Binary Strings

Last Updated: 19 May 2023

When two binary strings are added, then the sum returned is also a binary string.Example:Input : x = "10", y = "01"Output: "11"Input : x = "110", y = "011"Output: "1001"...read more

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Java Program to Convert String to String Array Using Regular Expression

Last Updated: 02 June 2022

Regular Expressions or Regex (in short) is an API for defining String patterns that can be used for searching, manipulating, and editing a string in Java. Email validation...read more

Convert String to Byte Array in Java Using getBytes(Charset) Method

Last Updated: 22 November 2024

To convert a string to a byte array, we use the getBytes(Charset) method In Java that transforms the string into a sequence of bytes based on a specified character encodin...read more

Java Program to Extract a Single Quote Enclosed String From a Larger String using Regex

Last Updated: 31 January 2023

Problem Statement: Given a String extract the substring enclosed in single quotes (') using Java Regex.Java regex is an API for pattern matching with regular expression. '...read more

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Technical Scripter 2020

Java Program to Implement Wagner and Fisher Algorithm for Online String Matching

Last Updated: 19 January 2021

The Wagner-Fischer Algorithm is a dynamic programming algorithm that measures the Levenshtein distance or the edit distance between two strings of characters. Levenshtein ...read more

Java Program to Convert String to Byte Array Using getBytes() Method

Last Updated: 19 January 2021

In Java, strings are objects that are backed internally by a char array. So to convert a string to a byte array, we need a getByte() method. It is the easiest way to conve...read more

Java Program to Count Number of Vowels in a String

Last Updated: 02 November 2022

In java, the string is a sequence of characters and char is a single digit used to store variables. The char uses 2 bytes in java. In java, BufferedReader and InputStreamR...read more

Technical Scripter 2020

Java Program to Convert OutputStream to String

Last Updated: 09 December 2021

OutputStream is an abstract class that is available in the java.io package. As it is an abstract class in order to use its functionality we can use its subclasses. Some su...read more

Technical Scripter 2020

Java Program to Separate the Individual Characters from a String

Last Updated: 27 January 2021

The string is a sequence of characters including spaces. Objects of String are immutable in java, which means that once an object is created in a string, it's content cann...read more

Java Program to Find the Lost Number

Last Updated: 04 January 2021

Bob is a small kid and just learned to count numbers. He sat in his house and started playing with his number of toys. He was having some n toy numbers on his left and the...read more

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