I am working on completing pre-work for a Java bootcamp and I am stuck on the question below.

Can someone please provide some insight or refer me to a document to assist with getting past this question?

Output all combinations of character variables a, b, and c, using this ordering: 

abc acb bac bca cab cba

So if a = ‘x’, b = ‘y’, and c = ‘z’, then the output is: xyz xzy yxz yzx zxy zyx

Note: If outputting multiple character variables with one statement, the argument for System.out.print() should start with “” + 

Your code will be tested in three different programs, with a, b, c assigned with ‘x’, ‘y’, ‘z’, then with ‘#’, ‘$’, ‘%’, then with ‘1’, ‘2’, ‘3’. 

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