查找特定字符串正则表达式

Question

How do I include specific words as a delimiter when I already include them?

Lets say I have a 28 MB TAB-delimited text file (approximately 865,000 records) of the complete transit schedule for the city of Toronto.

But I also don't want the word "complete" in my result.

inLine.useDelimiter("[^a-zA-Z]+");

Should I be doing something like this?
inLine.useDelimiter("[^a-zA-Z]+(complete)");

while (inLine.hasNext()) {
      String word = inLine.next().toLowerCase();
      TreeNode node = bst.findOrInsert(new NodeData(word));
      ListNode p = new ListNode(currentLine);
      p.next = node.data.firstLine;
      node.data.firstLine = p;
}
    
      

Answer 1

You can use the replaceAll method, try this code:

    String wordToReplace = "complete"; //word that you need to exclude
    String fileContent = "hello and welcome to complete course in java";    
    String result = fileContent.replaceAll(wordToReplace, "");
    System.out.println(result);   

Answer 2

How do I include specific words as a delimiter when I already include them?

Lets say I have a 28 MB TAB-delimited text file (approximately 865,000 records) of the complete transit schedule for the city of Toronto.

But I also don't want the word "complete" in my result.

inLine.useDelimiter("[^a-zA-Z]+");

Should I be doing something like this?
inLine.useDelimiter("[^a-zA-Z]+(complete)");

while (inLine.hasNext()) {
      String word = inLine.next().toLowerCase();
      TreeNode node = bst.findOrInsert(new NodeData(word));
      ListNode p = new ListNode(currentLine);
      p.next = node.data.firstLine;
      node.data.firstLine = p;
}