I have a question, which I want to solve myself. The question is that how to find all permutations of a String in Java. Its code is available all over internet. But I just can not understand it(to the point that I can code it myself). My brain is telling me to solve myself but this is not happening. What should I do? This is not even my assignment. This happens with a lot of problems. I don’t want the code,I already have it. But I want to know, how to tackle this kind of problem.