Question

Write A Java Program to find duplicate Characters in a String​

Answer 1

Answer:

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Answer 2

Answer:

import java.util.HashMap;

import java.util.Map;

import java.util.Set;

public class DuplicateCharFinder {

public void findIt(String str) {

Map<Character, Integer> baseMap = new HashMap<Character, Integer>();

char[] charArray = str.toCharArray();

Explanation:

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