CODEWITHSUNDEEP
javastring
xan
xan

Reputation: 4696

Removing specific text from each line

I have about thousand lines of the type:

<option value="1436">Some text
<option value="36">Some text

I want to store a fresh file, without <...> part in it. The code I'm writing is:

try{
    FileInputStream fs= new FileInputStream(f);
    Scanner s= new Scanner(fs);
    while (s.hasNext()){
        String sentence=s.nextLine();
        int l=sentence.length();
        try{//printing P
            BufferedWriter bw = new BufferedWriter(new FileWriter("Ps.txt"));
            for (int i=0;i<l;i++){
                if (sentence.charAt(i)=='>'){
                    for (int j=i+1;j<l;j++)
                    bw.write(sentence.charAt(j));
                }
                bw.newLine();
            }
            bw.close();
        }   
        catch(Exception e){}
    }
}

However, it just storing 3-4 lines in the output file.

Upvotes: 0

Views: 53

Answers (2)

JohnnyO
JohnnyO

Reputation: 3068

You are opening and closing the file inside your while loop.you'll want to move it outside of the main loop, so you open the file once don't close the file until the end.

Thus, every iteration of the loop, you are overwriting the file, so the contents of the file will only be what was computed by the last iteration of the loop.

Upvotes: 2

Floris
Floris

Reputation: 46445

If using sed is an option, then

cat file1 | sed 's/\<.*\>//' > file2

Should do the trick

Upvotes: 0

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