Line End Problem Reading with Scanner Class in Java
- by dikbas
I am not an experienced Java programmer and i'm trying to write some text to a file and then read it with Scanner. I know there are lots of ways of doing this, but i want to write records to file with delimiters, then read the pieces.
The problem is so small. When I look the output some printing isn't seen(shown in below). I mean the bold line in the Output that is only written "Scanner". I would be appreciated if anyone can answer why "String: " isn't seen there. (Please answer just what i ask)
I couldn't understand if it is a simple printing problem or a line end problem with "\r\n".
Here is the code and output:
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
public class Tmp {
public static void main(String args[]) throws IOException {
int i;
boolean b;
String str;
FileWriter fout = new FileWriter("test.txt");
fout.write("Testing|10|true|two|false\r\n");
fout.write("Scanner|12|one|true|");
fout.close();
FileReader fin = new FileReader("Test.txt");
Scanner src = new Scanner(fin).useDelimiter("[|\\*]");
while (src.hasNext()) {
if (src.hasNextInt()) {
i = src.nextInt();
System.out.println("int: " + i);
} else if (src.hasNextBoolean()) {
b = src.nextBoolean();
System.out.println("boolean: " + b);
} else {
str = src.next();
System.out.println("String: " + str);
}
}
fin.close();
}
}
Here is the output:
String: Testing
int: 10
boolean: true
String: two
String: false
Scanner
int: 12
String: one
boolean: true
