Hello programmers, I'd like to get some help in learning Java language. I have problem with substrings and indexOf. I want to make a simple program which give me an output that swaps the last names. For example : I have the name rana mcdonald and I have another name sara john . I want the output to be rana john and sara mcdonald.. also I'd like to know how to make a replace using string? Please answer me as fast as possible.
Thanks in advance :)