String length help
Hi I am trying to compare two strings to see if they both end with "\r\n" one is being read from the command line the other is a fixed string, but I am having the following problem
publicstaticvoid main(String[] args)
{
Scanner s =new Scanner(System.in);
String a ="\r\n";
String b = s.nextLine();// input \r\n
System.out.println(a.length());// 2
System.out.println(b.length());// 4
System.out.println(a.equals(b));// false
}
Idealy the two should be the same length. Any ideas on how to do this.
[901 byte] By [
finlowbaa] at [2007-11-26 21:55:41]
> String a = "\r\n";
That ISNT the text \r\n.
\ = escape character
\r = special code for carriage return
\n = special code for carriage return
The escape tells Java to use those special values.
To escape the escape add another \
As in \\r
> String b = s.nextLine(); // input \r\n
This IS the text \r\n
When you type \r\n the \ arent escaped.
to test if a String ends with \r\n use:
boolean endswith = yourString.endsWith("\r\n");
import java.util.*;
public class Escape{
public static void main(String[] args){
String str1 = "\r\n";
String str2 = "\\r\\n";
Scanner s = new Scanner(System.in);
System.out.print("Enter Text: ");
String str3 = s.nextLine();
System.out.println("\nString 1: '" + str1 + "'");
System.out.println("String 2: '" + str2 + "'");
System.out.println("String 3: '" + str3 + "'");
System.out.println("\nLength 1: " + str1.length());
System.out.println("Length 2: " + str2.length());
System.out.println("Length 3: " + str3.length());
System.out.println("\nEnds With: " + str1.endsWith("\r\n"));
System.out.println("Ends With: " + str2.endsWith("\r\n"));
System.out.println("Ends With: " + str3.endsWith("\r\n"));
System.out.println("\nEnds With: " + str1.endsWith("\\r\\n"));
System.out.println("Ends With: " + str2.endsWith("\\r\\n"));
System.out.println("Ends With: " + str3.endsWith("\\r\\n"));
}
}
