Category: Problem Solving

Write a java program to validate string using Regular Expression. Given a string (s) apply the following rules. String should be only four characters long.

Write a java program to count the number of vowels in the string. Write a program to read a string and count the number of

Write a java program to count number of char in string. Write a program to read a string and return an integer based on the

java program to covert last letter of the word in uppercase in the string. Write a program to read a sentence as a string and

Java program to remove all 10s from the array. Write a program to read an integer array and remove all 10s from the array, shift

Write a java program to reverse string without reverse method. Write a program to read a string and a character, and reverse the string and

Write a java program to validate a string. Write a program to read two strings and check whether or not they have dashes in the

Write a java program to find the sum of the Fibonacci series. Write a program to read an integer n, generate Fibonacci series and calculate

Write a Java program to validate PAN No., PAN card number always comes in a specific format like “BJYPP3081R”, Let’s write a Java program to validate

Java program to find palindrome in the range. Write a Java program to input two integers, which correspond to the lower limit and upper limit