Category Archives: Java Programming

Java Program to Count frequency of each characters using Buffered Reader

Java Program to Count frequency of each characters using Buffered Reader Write a Java Program to Count frequency or occurrence of each characters using Buffered Reader.Finding characters frequency of a String means calculating the occurrence of  each alphabet present in the string. Since there’s no pre-build function present in Java for calculating the occurrence of the characters… Read More »

Write a Java Program to Count frequency or occurrence of all characters in string

Java Program to Count occurrence or frequency of all characters in string Write a Java Program to Count frequency or occurrence of all the characters present in the string.Finding characters frequency of a String means calculating the occurrence of  each alphabet present in the string. Since there’s no pre-build function present in Java for calculating… Read More »

Java Program to find Lexicographically smallest and largest substring of length k

Java Program to find Lexicographically smallest and largest substring of length k Write a Java Program to find Lexicographically smallest and largest substring of length k. This problem is derived from the String section of Hackerrank in java. I like this problem, so i decided to put my solution on my site.Below is the question and solution… Read More »