Category: Problem Solving

Write code to remove vowels from the even position in the string. The return type of the output is the string after removing all the vowels.

Write a Java Program to validate passwords in Java. Password should have some format like “Hello#123“. Let us write a java program to validate passwords

Encryption of String using Java. Write a program to encrypt the given string. Let “Old” be a string, its encrypted form would be “Ple”. Let

Java code to validate a date and time format. There are two different programs one is to validate a Date format “dd/MM/yyyy” and the other

Write a code to read two int array lists of size 5 each as input and to merge the two ArrayList, sort the merged array

Write a program to read a string and a positive integer n as input and construct a string with first n and last n characters

Write a program to read a string and to test whether the first and last character is the same. The string is said to be

Write a program to read a string of even length and to fetch two middlemost characters from the input string and return it as string output.

Write a program to read a number, calculate the addition of squares of even digits (values) present in the given number. Also, we will see