How to check if two String are Anagram in Java - Program Example

Write a Java program to check if two String is an anagram of each other, is another good coding question asked at fresher level Java Interviews. This question is on a similar level of finding the middle element of LinkedList in one pass and swapping two numbers without using the temp variable. By the way, two String is called anagram, if they contain the same characters but on different order e.g. army and mary, stop and pots, etc. Anagrams are actually a mix-up of characters in String. If you are familiar with String API, i.e. java.lang.String then you can easily solve this problem.
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