Replace substring in a string In this article we are going to make a java program to replace substring in a string . we will be asking the user to input a base string, than we will ask for a substring ...

//for array len=a.length...for str len=s.length()..."()"this fun symbol use is necessary /*arr.length here .length is a field... In Java, a field refers to a variable that is a member of a class or an ...