A comprehensive collection of Java coding problems, algorithms, and concepts for technical interviews and placement exams. Covering data structures, OOP principles, design patterns, multi-threading, each problem includes well-structured solution preparing for Java-based roles.

Finding vowel letters in the string

Java CMD program for counting the vowels of the entered string.

Change the vowels positions of a sentence from the beginnig until the end

Techgig Problems Solved

Educational Java exercise from Wild Code School about unit testing and test driven development (TDD).

Petya started to attend programming lessons. On the first lesson his task was to write a simple program. The program was supposed to do the following: in the given string, consisting if uppercase and lowercase Latin letters, it: deletes all the vowels, inserts a character "." before each consonant, replaces all uppercase consonants with correspo…

No vowels after here

Developer Mr.Tayyab MuGhal

Its all about the CORE

String problems and solutions in Java