How to convert a String to upper case

[Valeriano]

I am getting a string from the user and i need to convert it to upper case. How can i do this?

[levent]

Hi Valeriano,

You can use toUpperCase() method of String class. String class has lots of more useful methods.

[amateur83]

String s1 = "test";

s1 = s1.toUpperCase();

System.out.println(""=========RESULT=========" + s1);

//it'll print TEST

[faisalcmpm]

private String conertToTitleCase(String actualName) {
StringBuilder name = new StringBuilder(actualName);
name.setCharAt(0, (char)(name.charAt(0) -32));
for(int i = 1 ; i < name.length() ; i++){
if(name.charAt(i -1) == ' ' && name.charAt(i) != ' '){
name.setCharAt(i, (char)(name.charAt(i) -32));
}
}
return name.toString();
}

[Eranga]

Why you want to do the conversion in such a long way?

[masijade]

private String conertToTitleCase(String actualName) {
StringBuilder name = new StringBuilder(actualName);
name.setCharAt(0, (char)(name.charAt(0) -32));
for(int i = 1 ; i < name.length() ; i++){
if(name.charAt(i -1) == ' ' && name.charAt(i) != ' '){
name.setCharAt(i, (char)(name.charAt(i) -32));
}
}
return name.toString();
}

And if the text is not US-ASCII?

[Eranga]

Of course. It's dead.

[tghn2b]

I saved this thinking one day I might need it (and I was right, look like today is the day)
it works in C/C++ have not used it in java

uppercase = lowercase – ('a' – 'A');
lowercase = uppercase + ('a' – 'A');

[CJSLMAN]

huh... "uppercase" and "lowercase" are string variables?

CJSL

[emceenugget]

i'd assume chars.

[CJSLMAN]

ah!! yes... duh... got it... thanks !
... and yeah, it works if you do some casting:

uppercase = (char)(lowercase - ('a' - 'A'));
lowercase = (char)(uppercase + ('a' - 'A'));

But I think it will only support US ASCII.

CJSL

[masijade]

But I think it will only support US ASCII.

Correct. It won't even support the extended ASCII characters.

[emceenugget]

zombieeee thread.

[CJSLMAN]

hahaha.... didn't even notice... well, at least it was fun !!! I don't feel so bad because it seems everybody really into it...

CJSL

[JosAH]

Create a program that converts all vowels to uppercase and all consonants to lowercase.

Enter a String: HELLO WORLD
Converted String: hEllO wOrld

Please stop double posting and stick to your own thread.

kind regards,

Jos

[Andaji]

You can use method...
String toUpperCase( word you want to move to upper case goes in this area);
then it will move all the words to upper case..
I think this link below may help you about these stuffs.
String (Java 2 Platform SE 5.0)


Best regards

Thank You !

[Fubarable]

You can use method...
String toUpperCase( word you want to move to upper case goes in this area);
then it will move all the words to upper case..
I think this link below may help you about these stuffs.
String (Java 2 Platform SE 5.0)
Best regards

This answer has already been given in this thread and three years ago. LOL. Let's try to keep things relevant. Locking thread.