Chr function

[Novello]

Hello everybody,

Visual Basic has this function:

Chr(2) that is the 0x2 char

How can I get it in java?

thank you
bye

 

[Oliver Wong]

Hello everybody,

Visual Basic has this function:

Chr(2) that is the 0x2 char

How can I get it in java?

For the benefit of those who are not familiar with VB, you should have
explained that the Chr() function takes a integer representing a char code
(which is either ASCII or ANSI, not sure), and returns the corresponding
character.

In Java, you can bypass that function altogether, and do something like:

char myChar = 2;

Which declares a character called "myChar", and assigns it the value 2.
It can simultaneously be thought of as representing the natural number 2,
and the character whose unicode is 2.

- Oliver

 

[Mike Schilling]

For the benefit of those who are not familiar with VB, you should
have explained that the Chr() function takes a integer representing a
char code (which is either ASCII or ANSI, not sure), and returns the
corresponding character.

In Java, you can bypass that function altogether, and do something
like:
char myChar = 2;

Which declares a character called "myChar", and assigns it the
value 2. It can simultaneously be thought of as representing the
natural number 2, and the character whose unicode is 2.

Note that applying this same conversion to an arbitrary integer requires a
cast:

char myChar = (int) i;

since the range of int exceeds that of char.

 

[Danno]

Note that applying this same conversion to an arbitrary integer requires a
cast:

char myChar = (int) i;

since the range of int exceeds that of char.

I think you meant to do

char myChar = (char) i; // whereas i is an integer;

 

[Danno]

Note that applying this same conversion to an arbitrary integer requires a
cast:

char myChar = (int) i;

since the range of int exceeds that of char.

Actually, now that I think about it....you don't need a cast at all.

It will automatically accept any number from 0-65535 without a cast.

 

[Lew]

Actually, now that I think about it....you don't need a cast at all.

It will automatically accept any number from 0-65535 without a cast.

Which cannot be determined at compile time. You need the cast.

- Lew

 

[Simon Brooke]

Hello everybody,

Visual Basic has this function:

Chr(2) that is the 0x2 char

How can I get it in java?

(char) 2

 

[Danno]

Which cannot be determined at compile time. You need the cast.

- Lew

char myChar = 2; //as stated a few messages up works, that's what I
was referring to

int a = 123;
char myChar2 = (char) 2; //does require a cast

Just to clarify.

 

[John O'Conner]

Hello everybody,

Visual Basic has this function:

Chr(2) that is the 0x2 char

How can I get it in java?

thank you
bye

No function necessary:

char ch = '\u0002';

The \u notation requires a 4-digit hex number that represents a UTF-16
Unicode code unit.

For Unicode code points in the supplementary character planes, you must
use a CharSequence, typically a String, with the UTF-16 surrogate pairs:

String str = "\uXXXX\uYYYY"; // XXXX is a leading surrogate value; YYYY
is a trailing surrogate value

Regards,
John O'Conner

 

[Oliver Wong]

char myChar = 2; //as stated a few messages up works, that's what I
was referring to

int a = 123;
char myChar2 = (char) 2; //does require a cast

Just to clarify.

I'm guessing you meant:

int a = 123;
char myChar2 = (char) a; //does require a cast

=)

- Oliver

 

[Mike Schilling]

I think you meant to do

char myChar = (char) i; // whereas i is an integer;

You are of course correct.

 

[Mike Schilling]

Actually, now that I think about it....you don't need a cast at all.

You do when using a variable.

 

[Danno]

I'm guessing you meant:

int a = 123;
char myChar2 = (char) a; //does require a cast

=)

- Oliver

Absolutely right, thanks for the help.