String Methods for Character Extraction in Java

Java Tutorial String Methods in Java

String Searching Methods in Java

Java - Replace a specified character with another character

How to Remove all White Spaces from a String in Java? - GeeksforGeeks

Write a program in Java to accept a String in uppercase and replace all the vowels present in the String with Asterisk (*) sign. Sample Input:

String Concatenation

Java String concat() Method with Examples - GeeksforGeeks

Java - Concatenate a string to the end of another string