removing extra white spaces from text files
16,904
File file = new File("input_file.txt");
try(BufferedReader br = new BufferedReader(new FileReader(file));
FileWriter fw = new FileWriter("empty_file.txt")) {
String st;
while((st = br.readLine()) != null){
fw.write(st.replaceAll("\\s+", " ").trim().concat("\n"));
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Author by
user3001418
Updated on June 22, 2022Comments
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user3001418 about 2 years
I have number of text files in the following format:
196903274115371008 @266093898 Prince George takes his first public steps with his mom, Catherine, Duchess of Cambridge.
I would like to remove all extra while spaces + new line characters except the first new line characters. So I would like to above to be like this:
196903274115371008@266093898 Prince George takes his first public steps with his mom, Catherine, Duchess of Cambridge.
I wrote the following code :
package remove_white_space222; import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; public class Remove_white_space222 { public static void main(String[] args) throws FileNotFoundException, IOException { FileReader fr = new FileReader("input.txt"); BufferedReader br = new BufferedReader(fr); FileWriter fw = new FileWriter("outfile.txt"); String line; while((line = br.readLine()) != null) { line = line.trim(); // remove leading and trailing whitespace line=line.replaceAll("\\s+", " "); fw.write(line); } fr.close(); fw.close(); } }
Thanks in advance for your help,,,,
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TheLostMind about 10 years+1 for the clean code and explaination of what you want.. Seldom seen on SOF.
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Bentaye over 4 yearsWill the second line always be blank in all your input files?
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