CODEWITHSUNDEEP
javalinenewline
Tokuchi Toua
Tokuchi Toua

Reputation: 175

reading new line char using java

Help guys, i've just seen this example in the web. i would like to use this to print exactly the contents of a text file in the same format containing new lines, but it just prints out the first line. thanks

 import java.util.*;
 import java.io.*;

      public class Program
      {
          public static void main(String[] args)throws Exception
          {
          Scanner scanner = new Scanner(new FileReader("B:\\input.txt"));
          String str = scanner.nextLine(); 

          // Convert the above string to a char array.
          char[] arr = str.toCharArray();

          // Display the contents of the char array.
          System.out.println(arr);
          }
      }

Upvotes: 1

Views: 15407

Answers (2)

Kumar Vivek Mitra
Kumar Vivek Mitra

Reputation: 33534

Try this.. To read the whole file as it is.....

File f = new File("B:\\input.txt");
FileReader fr = new FileReader(f);
BufferedReader br  = new BufferedReader(fr);

String s = null;

while ((s = br.readLine()) != null) {
    // Do whatever u want to do with the content of the file,eg print it on console using SysOut...etc
}

br.close();

But still if you want to use Scanner then try this....

while ( scan.hasNextLine() ) {
    str = scan.nextLine();
    char[] arr = str.toCharArray();
}

Upvotes: 3

NiziL
NiziL

Reputation: 5140

public class Program {
    public static void main(String[] args) throws Exception {
        Scanner scanner = new Scanner(new FileReader("B:\\input.txt"));
        String str;
        while ((str = scanner.nextLine()) != null)
            // No need to convert to char array before printing
            System.out.println(str);
    }
}

The nextLine() method provides only one line, you must call it until have a null ( ~ C's EOF )

Upvotes: 3

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