Question

I have this code:

public void readTroops() {
        File file = new File("resources/objects/troops.txt");
    StringBuffer contents = new StringBuffer();
    BufferedReader reader = null;

    try {
        reader = new BufferedReader(new FileReader(file));
        String text = null;

        // repeat until all lines is read
        while ((text = reader.readLine()) != null) {
            StringTokenizer troops = new StringTokenizer(text,"=");
            String list = troops.nextToken();
            String value = troops.nextToken();
}

and this file:

//this is a comment part of the text file//

Total=1

the problem is that 1) I cant get it to ignore everything within the //,// and can’t get it to read with an ‘ENTER’ (line) in-between them. For example, this text works:

Total=1

So my question is what do I type into the delimiter area ie.

StringTokenizer troops = new StringTokenizer(text,"=","WHAT GOES HERE?");

So how can I get Tokenizer to ignore ‘ENTER’/new line, and anything in-between // or something similar, thanks.

ps.I don’t care if you use a String.split to answer my question.

Answer 1

Use the method countTokens to skip lines that don’t have two tokens:

while ((text = reader.readLine()) != null) { 
        StringTokenizer troops = new StringTokenizer(text,"="); 
        if(troops.countTokens() == 2){
            String list = troops.nextToken(); 
            String value = troops.nextToken(); 
            ....
        }else { 
            //ignore this line
        }
}