hwo to compare two char type values?

[rahil.khan]

how can i compare two char type variables, ignoring the Case?

[jim829]

Perhaps Character.toLowerCase(c1) == Character.toLowerCase(c2)

Regards,
Jim

[ShadowWalker]

You could just convert them to string and then use the equalsIgnoreCase(String x) method..

import java.util.*;

public class Test{

	public static void main(String args[]){
		char a  = 'x';
		char b  = 'X';
		String temp = "" + a ;
		if(temp.equalsIgnoreCase(b+"")){
			System.out.println("Equals");
		}
	}
}

Edit : But i guess jim829 answer is better ;)

[rahil.khan]

Character means exactly? and do i have to import any class before using this function? and whats its return type?

[rahil.khan]

You could just convert them to string and then use the equalsIgnoreCase(String x) method..

import java.util.*;

public class Test{

	public static void main(String args[]){
		char a  = 'x';
		char b  = 'X';
		String temp = "" + a ;
		if(temp.equalsIgnoreCase(b+"")){
			System.out.println("Equals");
		}
	}
}

Edit : But i guess jim829 answer is better ;)

i can't use string cause i have used lots of Char functions.

[rahil.khan]

thnx jim829, it worked..
thanx ShadowWalker for your reply...

[JosAH]

You could just convert them to string and then use the equalsIgnoreCase(String x) method..

import java.util.*;

public class Test{

	public static void main(String args[]){
		char a  = 'x';
		char b  = 'X';
		String temp = "" + a ;
		if(temp.equalsIgnoreCase(b+"")){
			System.out.println("Equals");
		}
	}
}

Edit : But i guess jim829 answer is better ;)

You bet; your 'solution' creates a StringBuilder (line #8), moves an empty String literal to it, adjusts it (by appending a single character) and creates another String. The same holds to line #9, and it calls a method that calls another method (in the Character class) and finally the garbage collector has to get rid of two StringBuilders and two Strings; there is no such thing as a free lunch when it comes to Strings ...

kind regards,

Jos

[ShadowWalker]

You bet; your 'solution' creates a StringBuilder (line #8), moves an empty String literal to it, adjusts it (by appending a single character) and creates another String. The same holds to line #9, and it calls a method that calls another method (in the Character class) and finally the garbage collector has to get rid of two StringBuilders and two Strings; there is no such thing as a free lunch when it comes to Strings ...

kind regards,

Jos

Good to know. As i see i have a lot of things to learn... :)