CODEWITHSUNDEEP
java
PierceJ
PierceJ

Reputation: 95

Extra space when looping through text file.

When looping through a text file with each item on a different line, the loop keeps getting an extra white space as one of the values. 

try {
            BufferedReader br = new BufferedReader(new FileReader("Words.txt")); 
            String line;
            while ((line = br.readLine()) != null) {
                event.getTextChannel().sendMessage(line + "; ").queue();
            }
            br.close();
    }

The result I'm getting is:

廊下;

;

火星;

;

意味;

;

but I want 廊下; 火星; 意味;

Upvotes: 0

Views: 63

Answers (2)

PierceJ
PierceJ

Reputation: 95

I have fixed it by adding if (!line.equals("")) before the line that prints the text.

Upvotes: 0

Sunny
Sunny

Reputation: 615

There could be a cleaner way of doing it depending on your actual way of sending the message as pointed out in the comments. You could however try doing something like this:

try {
        BufferedReader br = new BufferedReader(new FileReader("Words.txt")); 
        StringBuilder builder = new StringBuilder();
        String line;
        while ((line = br.readLine()) != null) {
            builder.append(line.replace("\n", "").replace("\r", "")).append("; ")
        }
        br.close();
        event.getTextChannel().sendMessage(builder.toString()).queue(); 
}

EDIT: You really should try to find out where the extra empty lines come from, but a temporary workaround would be to skip over empty lines:

try {
        BufferedReader br = new BufferedReader(new FileReader("Words.txt")); 
        StringBuilder builder = new StringBuilder();
        String line;
        while ((line = br.readLine()) != null) {
            String stripped = line.replace("\n", "").replace("\r", "");
            if (!stripped.isEmpty()) {
                builder.append(stripped).append("; ")
            }
        }
        br.close();
        event.getTextChannel().sendMessage(builder.toString()).queue();
}

Upvotes: 2

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