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Java program to print only unique characters in a string

Categories: Strings. No Comments on Java program to print only unique characters in a string

In this article we will learn to implement a Java program to print only unique characters in a string. A Java program is provided below which reads a string from the user, and prints out only the unique characters in the string in insertion order.   First we find out the frequency of each character […]

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Java program to print the frequency of characters in a string

Categories: Strings. No Comments on Java program to print the frequency of characters in a string

In this article we will learn to implement a Java program to print the frequency of characters in a string. A Java program is provided below reads the string and gives the frequency of each character (number of times a character is repeated).   This java program reads a string from the user, calculates frequency […]

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Java program to remove duplicate characters from a string

Categories: Strings. 2 Comments on Java program to remove duplicate characters from a string

In this article we will learn to implement a Java program to remove duplicate characters from a string. A java program is provided below that accepts a string from the user, ignores any duplicate characters and prints each character only once in ascending order.   We use TreeSet class from collections framework for printing the characters […]

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Java program to display integers and sum using StringTokenizer

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In this article we will learn to implement a Java program to display integers and their sum using StringTokenizer. A Java program is provided below which uses StringTokenizer class, reads a line of integers and then displays each integer and the sum of all integers.   Program is as follows: import java.util.*; class StringTokenDemo { […]

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Java program for sorting a given list of names in ascending order

Categories: Strings. No Comments on Java program for sorting a given list of names in ascending order

In this article we will learn to implement a Java program for sorting a given list of names in ascending order. A Java program is provided for sorting a given list of names or strings in ascending order.   Program is as follows: import java.util.*; class Sorting { void sortStrings() { Scanner s = new […]

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Java program that checks whether a given string is a palindrome or not

Categories: Strings. 1 Comment on Java program that checks whether a given string is a palindrome or not

In this article we will learn to implement a Java program that checks whether a given string is a palindrome or not. A Java program is provided below that reads a string, checks whether it is a palindrome or not.   Program is as follows: import java.util.*; class Palindrome { void isPalindrome(String str) { String […]

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