CODEWITHSUNDEEP
javacharacter
oadams
oadams

Reputation: 3087

toLowerCase(char) method?

Apparently there is a method that takes a char and returns a char: http://download.oracle.com/javase/6/docs/api/java/lang/Character.html#toLowerCase(char)

But I can't seem to get it to work. My code:

import java.lang.Character;

public class Test {
    public static void main(String[] args) {
        char c = 'A';
        c = toLowerCase(c);
        System.out.println(c);
    }
}

When I compile this, I get the following error:

$ javac Test.java
Test.java:6: cannot find symbol
symbol  : method toLowerCase(char)
location: class Test
        c = toLowerCase(c);
            ^
1 error

What am I doing wrong? Thanks.

Upvotes: 14

Views: 54524

Answers (8)

humblefoolish
humblefoolish

Reputation: 429

toLowerCase() is a static method of Character class. So, you will have to use the class name to invoke the method and pass the character which you want to convert to lower case.

Usage--> Character.toLowerCase(<character to be converted to lowercase>)

Other static methods are--> toUpperCase isLowerCase isUpperCase isDigit isAlphabetic

Upvotes: 2

Rahul Sharma
Rahul Sharma

Reputation: 5834

Use your own implementation to convert character to lower case:

c = (char) (c ^ 0x20);

In your method:

public static void main(String[] args) {
        char c = 'A';
        c = (char) (c ^ 0x20);
        System.out.println(c);
       }

Upvotes: 0

manisha mulchandani
manisha mulchandani

Reputation: 151

"Character" class is used to perform operations on characters of string i.e. to convert character into uppercase, to lower case etc.These methods are "static", So they do not need objects to call them.can be called by class name.

Example: toLowerCase() method of Character class Character.toLowerCase(char ch) converts the character ch argument to lowercase.

Corrected program is as below:

import java.lang.Character;
public class Test {
public static void main(String[] args) {
    char c = 'A';
    c = Character.toLowerCase(c);
    System.out.println(c);
   }
}

Just add the Character before the method toLowerCase() method,because the method is static and should be called by class name.

For more Details Refer following link: http://www.tutorialspoint.com/java/lang/character_tolowercase.htm

Upvotes: 0

sasi dharan
sasi dharan

Reputation: 1

Just add this statement in a header:

import static java.lang.Character.toLowerCase;

Upvotes: 0

abhi-rao
abhi-rao

Reputation: 2785

import java.lang.Character;

public class Test {  
    public static void main(String[] args) {  
        char c = 'A';  
        char lc = Character.toLowerCase(c);  
        System.out.println(lc);  
    }  
}

Upvotes: 4

jcomeau_ictx
jcomeau_ictx

Reputation: 38482

toLowerCase() is a method of java.lang.String; you use it like so:


jcomeau@intrepid:/tmp$ cat test.java; java test
public class test {
 public static void main(String[] args) {
  System.out.println("C".toLowerCase());
 }
}
c

Upvotes: 0

Hogan
Hogan

Reputation: 70538

Try using Character.toLowerCase(c) does that work?

Upvotes: 1

MeBigFatGuy
MeBigFatGuy

Reputation: 28588

toLowerCase is a static method, as such you need to qualify it with the class it belongs to, as

Character.toLowerCase(c);

Upvotes: 32

Related Questions