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POSearch and Replace in a file using arraylist, Java
 

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  1. POSearch and Replace in a file using arraylist, Java
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    <p>I wrote the below part of the code but I couldn't bind the arraylist with search and replace so my csv file is as like below 1/1/1;7/6/1 1/1/2;7/7/1</p> <p>I want to search the file 1.cfg for 1/1/1 and change it to 7/6/1 and 1/1/2 change to 7/7/1 and it goes so on.</p> <p>Thank you all in advance</p> <p><strong>It's now only printing in a new file only the last line of the old File</strong></p> <pre><code>import java.io.*; import java.util.ArrayList; import java.util.List; public class ChangeConfiguration { /** * @param args * @throws IOException */ public static void main(String[] args) { try{ // Open the file that is the first // command line parameter FileInputStream degistirilecek = new FileInputStream("c:/Config_Changer.csv"); FileInputStream config = new FileInputStream("c:/1.cfg"); // Get the object of DataInputStream DataInputStream in = new DataInputStream(config); DataInputStream degistir = new DataInputStream(degistirilecek); BufferedReader br = new BufferedReader(new InputStreamReader(in)); BufferedReader brdegis = new BufferedReader(new InputStreamReader(degistir)); List&lt;Object&gt; arrayLines = new ArrayList&lt;Object&gt;(); Object contents; while ((contents = brdegis.readLine()) != null) { arrayLines.add(contents); } System.out.println(arrayLines + "\n"); String strLine; //Read File Line By Line while ((strLine = br.readLine()) != null) { //Couldn't modify this part error is here :( BufferedWriter out = new BufferedWriter(new FileWriter("c:/1_new.cfg")); out.write(strLine); out.close(); } in.close(); degistir.close(); }catch (Exception e){//Catch exception if any System.err.println("Error: " + e.getMessage()); } } } </code></pre>
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    1. USahmet
    1. USahmet
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      1. POSearch and Replace in a file using arraylist, Java
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      1. VTUpMod
    1. COWhat is `function replace(arrayName,replaceTo, replaceWith)`? This will not compile in Java.
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      1. POSearch and Replace in a file using arraylist, Java
      1. USJohn B
    2. COWell, first of all if you want to modify a file you'll need to write to it. And you can't write to a `Reader` or `InputStream`, you need a `Writer` or `OutputStream`.
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      1. POSearch and Replace in a file using arraylist, Java
      1. USMark Peters
    3. COopps yes that function part is my problem i couldn't write that part for java that gathering strings from array and replacing it.
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      1. USahmet
 

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