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14/05/2018 Categories: Strings. No Comments on Java program to print the frequency of characters in a string

This java program reads a string from the user, calculates frequency of each character in the strings and displays the character followed by its frequency in ascending order.


We can maintain the count of each character by using the Map interface from collections framework. To maintain the ascending order, we can use TreeMap class.


The program is as follows:



For displaying in insertion order, we can use LinkedHashMap class instead of TreeMap.

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