Java (Removing a 'keyword' from the alphabet)

Java (Removing a 'keyword' from the alphabet)

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Java (Removing a 'keyword' from the alphabet)
Tag : java , By : user133834
Date : November 25 2020, 07:22 PM

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Removing sentences containing a keyword in java

Tag : java , By : user165871
Date : March 29 2020, 07:55 AM
Hope this helps I am been searching online and on here on how I can remove a line that contains one or two words but I can't find anything on java. This is the code I have right now: , Something like this:
//BufferedReader stuff etc.
List<String> words = new ArrayList<String>();

String line;
while( (line = br.readLine()) != null)
   boolean found = false;
   for(String word: words)
           found = true;

   if(found) continue;

Finding Corresponding Letter Counting from Opposite End of Alphabet and Removing From String Recursively JAVA

Tag : java , By : toki
Date : March 29 2020, 07:55 AM
will be helpful for those in need I have modified your method a bit, have a look at it. You need compare with 155 if your string is all capitals, if all lower case letters you need compare with 219. As @Raghu suggested, this doesnt required recursion (that is making things complicated), but I am assuming you want to try this with recursion.
public static boolean isAlphaOpp (String word)
        //if word has odd number of characters, it cannot be an alpha opp
        if (word.length() % 2 != 0)
            return false;
        //if string makes it to 0, then word must be an alpha opp
        if (word.length() == 0)
            return true;

        /*if (word.charAt(0) + word.charAt(word.length()-1) == 155)
                System.out.println(word.substring(1, word.length()-1));
                return isAlphaOpp(word.substring(1, word.length()-1));
        //Should go thru each letter and compare the values with char(0). If char(0) +     //char(i) == 155 (a match) then it should remove them and call the method again.
        int length = word.length()-1;
        int start = 0;
        String newStr = null;
        while(start < length) {

            if(word.charAt(start) + word.charAt(length) == 219) {
                StringBuilder sb = new StringBuilder(word);
                newStr = sb.toString();
            } else {
        if(newStr != null) {
            return isAlphaOpp(newStr);
        return false;

How to replace one alphabet by same alphabet and new line character in Java regex

Tag : java , By : user122937
Date : March 29 2020, 07:55 AM
may help you . Hi I want to replace a string e.g. , You could try the below,
String s = "<foo/><boo/><woo/>";
System.out.println(s.replaceAll("(?<=>)(?=<)", "\n"));
String s = "<foo/><boo/><woo/>";
System.out.println(s.replaceAll("(?!^)(<[A-Za-z])", "\n$1"));

JAVA removing a line from a .txt file with a keyword

Tag : java , By : Morbo
Date : March 29 2020, 07:55 AM
it helps some times I've tested your code with minor changes (noted by @Andreas while I was writing this) and it works as expected
    public static void main(String[] args) {
    try {

          File inFile = new File("C:\\rirubio\\books.txt");

          if (!inFile.isFile()) {
            System.out.println("Parameter is not an existing file");

          //Construct the new file that will later be renamed to the original filename. 
          File tempFile = new File("C:\\rirubio\\books.txt" + "_temp");

          BufferedReader br = new BufferedReader(new FileReader(inFile));
          PrintWriter pw = new PrintWriter(new FileWriter(tempFile));

          String line = null;

          String lineToRemove = JOptionPane.showInputDialog("Enter line to remove");

          //Read from the original file and write to the new 
          //unless content matches data to be removed.
          while ((line = br.readLine()) != null) {
            if (!line.trim().contains(lineToRemove)) {


          //Delete the original file
          if (!inFile.delete()) {
            System.out.println("Could not delete file");

          //Rename the new file to the filename the original file had.
          if (!tempFile.renameTo(inFile)) {
            System.out.println("Could not rename file");

        } catch (FileNotFoundException ex) {
        } catch (IOException ex) {

Removing keyword from list after matching the keyword with answer

Tag : chash , By : m0gb0y74
Date : March 29 2020, 07:55 AM
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