I am trying to code a find and replace Java program

Question

this is the loop im executing

for(int i=0;i<str.length;i++){
    if (str[i]==strFind) {
        str[i]=strReplace;
        count++;
    }
}

The problem is that if the last word of the sentence has a period in some test cases and it doesn't have a period in some.And if i replace the word in the given manner. I cannot retain the period. Is there a simpler solution for this? Also, can replace all take a sting variable(strReplace-user input)?

Comparison is not really my issue here.Replacing while maintaining the punctuation marks given by the user is the problem with my code. — Anubhav Agrawal, Jul 06 '20 at 10:21
Does this answer your question? [replace String with another in java](https://stackoverflow.com/questions/5216272/replace-string-with-another-in-java) — Paul, Jul 06 '20 at 10:32
@AnubhavAgrawal `if (str[i]==strFind) {` quite sure the comparison is an issue — jhamon, Jul 06 '20 at 12:18

score 0 · Answer 1 · answered Jul 06 '20 at 10:28

0

You can make use of java's builtin String function, replace for your scenario.

int getReplacementCount(String sentence,String searchWord, String replacement){      
   int count = 0;
   while(true){
      String replacedSentence = sentence.replace(searchWord,replacement);
      if(replacedSentence.equals(sentence){
         return count;
      else {
         count++;
         sentence = replacedSentence;
      }
   }
        
}

answered Jul 06 '20 at 10:28

Noushad

384
3
11

I used the string.replace directly and it worked. Thanks – Anubhav Agrawal Jul 09 '20 at 12:18

score 0 · Answer 2 · answered Jul 06 '20 at 10:32

0

Maybe the issue here is that you want to replace strings but you just watch and iterate over single characters of your string. You could use Apache Commons lang.

StringUtils.replace(text, searchString, replacement)

answered Jul 06 '20 at 10:32

timguy

2,063
2
21
40

Thank you I applied this and the code worked out fine. – Anubhav Agrawal Jul 09 '20 at 12:17

score 0 · Answer 3 · answered Jul 06 '20 at 10:44

0

This can be done with a built in library in java.

You can simply use:

String str1 = "Hello world";

//usage: str1.replace(word_or_character to replace, replacement)
str1 = str1.replace(" ", "")
System.out.println(str1)

Output:

Helloworld

answered Jul 06 '20 at 10:44

CodinGuy

33
1
5

I am trying to code a find and replace Java program

3 Answers3