How to get the matching characters in a string?

Cheese Coder answered on January 25, 2023 Popularity 3/10 Helpfulness 1/10

answer How to get the matching characters in a string?

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How to get the matching characters in a string?

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You can use the re module in Python to find matching characters in a string using regular expressions. 
The re.findall() function can be used to find all occurrences of a pattern in a string. 
For example, the following code finds all occurrences of the letter 'a' in a string:

import re

string = "The quick brown fox jumps over the lazy dog."
match = re.findall(r'a', string)
print(match)

This would return the following output:

['a', 'a', 'a']
You can also use re.search() to find the first match of a pattern in a string, 
or re.finditer() to return an iterator yielding match objects.

Popularity 3/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: get matching python

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Contributed on Jan 25 2023

Cheese Coder

0 Answers Avg Quality 2/10

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How to get the matching characters in a string?

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HashMap<Character, Integer> mp = new HashMap<> ();
   for (int j = 0; j<text.length (); j++) {
       char ch = text.charAt(j);
          if(mp.containsKey(ch)){
                int cnt = mp.get(ch);
             mp.put(ch, ++cnt);
         }else{
            mp.put(ch, 1);
          }
}
Set<Character> charct = map.keySet();
for (Character ch: charct){
     int c= mp.get(ch);
     if(c==1){
        System.out.println(ch+ " - " + c);

Popularity 3/10 Helpfulness 1/10 Language whatever

Source: Grepper

Tags: whatever get matching

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Contributed on Jan 25 2023

Cheese Coder

0 Answers Avg Quality 2/10

How to get the matching characters in a string?

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