Convert from int to char

Hi,
How can I convert from an int to char?

The challange is to convert from int to String without using any API or automatic conversionWoah, what a challenge ! Why ?
Anyway, what about a recursive call and switch statement. Something likepublic String intToString(int n) {
    if(n<0) {
        return "-"+intToString(-n);
    if(n<10) {
        return getStringDigit(n);
    else {
        return intToString(n/10) + getStringDigit(n%10);
private String getStringDigit(int n) {
    switch(n) {
        case 0:
            return "0";
        // etc.
}

Similar Messages

Convert from int to String

Hi, may i know how to convert from int to String??
For instance, i've>>
int i = 0;
i++;
String temp = i.toString();
[Need to convert the int to String here. Am i doing the convertion correctly?? Pls correct me. Thanks!]

Hi, may i know how to convert from int to String??
For instance, i've>>
int i = 0;
i++;
String temp = i.toString();
[Need to convert the int to String here. Am i doing
the convertion correctly?? Pls correct me. Thanks!]String temp = "" + i;

Convert from jchar to char

Does any one know how to convert from jchar to char?
Thank you,

does it have to be a jchar or can you get a jstring? is it possible to convert your jchar into a jstring before you pick it up in jni? if you can get a jstring you can use the function
const char* GetStringUTFChars(jstring str, jboolean *isCopy)
you would get back a character pointer that points to a single char plus the null terminator

From int to char...

Got a nice little problem: I have an int (e.g. int i = 111). This should be transformed into the appropriate ASCII-Code char (or UNICODE-char, if only this is possible). Sounds easy but I didn't manage it.
In desperate need for help... :-)
Hannibal_
Thanx!

Have you ever tried to cast an int to char? I've tried it for hours now but I didn't get it right. There is no problem to specify a char by giving it an int value (char c = 111) but to cast an int to char. It's not possible to do it like this:
char c;
int i = 111;
c = i;
Thanx!

Convert from int to byte in JavaScript

I have a small piece of code in Java,
int x = 216;
System.out.println((byte)x);
I'd like to convert this to JavaScript form and that means, I want to be able to get the exact answer from this code which is -40. How do I do that?

What do you mean with
I'd like to convert this to JavaScript formThere is nothing like a JavaScript form.
Within a JSP page you can write
<script type="text/javascript">
alert("<%=String.valueOf((byte)216)%>");
</script>Which displays an alert box with the message "-40"

Converting from Int/Double to Wording Format

Hi,
Does anyone has any sample program to convert double values into wording (this functionality is used to convert currency value) up to Trillion value.
For eg: 1000.90 One thousand And Ninety Cents
I have written a program which can accept up to 1 Billion. This is because that 'int' can accept bits up to that level only. I am unsure how go beyond that because when I declare the type to double, the compiler gave me the same error.
Thank you.

Check
http://www.rgagnon.com/javadetails/java-0426.html
but consider keeping locale specific texts in properties
file and access them through resource bundles.

Convert from int to letter

Uhh ... i am getting a stream of int from an InputStream and I want to display them as letters ... they are ASCII values ... can I do this ? feel dumb ...
thanks .,..

Yup ... you sure can ... start reading the API with the String class and pay particular attention to the section on ASCII conversion.

Exp/imp, convertion from byte to char.

Hi,
I have a dump file exported from a database with nls_lenght_sematics=BYTES. When i import it into a database with nls_lenght_sematics=CHAR, it is retaining the BYTE charecteristics. Is there any way to change it into CHAR while importing. This for globalization support.
Thanks
Muneer

Hi Muneer,
No, import always preserve the LENGTH semantics of the original columns.
The workaround is to create your schema objects in the traget database first, with the desired semantics, prior to the importing the data.
Nat

How to convert from int to string

Can anyone help me on how to convert int to string?
Thanks,
Q

int i = 3
String S = i + ""
i will be promoted to String automatically when the above expression is evaluated

Int to Char...I don't know what the problem is here

Everything compiles fine here, and if I print out the "encryption" variable I get what looks like it would be right, converted into chars, but when I try to convert the int to char(my char variable for that is 'w'), my compiler freaks out, I don't even know what it's doing it doesn't give me an error, but sometimes it prints out nothing but sometimes it prints out "puTTypUTtypuTTYPUtty" ...why is it doing that and what is wrong with what I am doing?.
public class encrypt
public static void main(String[] args)
String plainText = "hello, my name is christy.";
String keyWord = "nice to meet you";
int encryption = 0;
char ch = 'a';
char c = 'a';
int encryptor = 0;
int charCode;
int sum = 0;
char w;
int i = plainText.length();
int j = plainText.length();
int[] plain = new int;
int[] key = new int[j];
for(i=0; i<plainText.length(); i++)
ch = plainText.charAt(i);
charCode = (int)ch;
if(charCode > 97 && charCode < 122)//make lowercase
{charCode = charCode - 97;}
if(charCode > 65 && charCode < 90)
{charCode = charCode - 65;}
plain[i] = charCode;
for(j=0; j<keyWord.length(); j++)
c = keyWord.charAt(j);
int chCode = (int)c;
if(chCode > 97 && chCode < 122)
{chCode = chCode - 97;}
if(chCode > 65 && chCode < 90)
{chCode = chCode - 65;}
key[j] = chCode;
encryption = (plain[i] + key[j]) % 26;
w = (char)encryption;
System.out.print(w);

And for that matter, use increment/decrement assignment operators (like += and -=) instead of verbosely repeating the variable. And if you're going to use character-by-character case conversion, use the methods in Character don't do it like a C programmer circa 1982. And if this is anything other than a homework assignment, use encryption code provided in the JDK; don't reinvent it.

HOW can I convert int value char TO String

I am trying to study Java by books, but sometimes it is quite difficult to find answers even to simple questions...
I am writing a program that analyzes a Chinese text in Unicode. What I get from the text is CHAR int value (in decimals), and now I need to find them in another text file (with RegEx). But I can't find a way how to convert an INT value of a char into a String.
Could you help me?
Thank you in advance.

You are confusing matters a bit. A char is a char is a char, no matter
how you represent it. Have a look at this:char a= 'A';
char b= 65;Both a and b have the same value. The representation of that value
can be 'A' or 65 or even (char)('B'-1), because the decimal representation
of 'B' is 66. Note the funny construct (char)(...). This construct casts
the value ... back to the char type. Java performs all non-fraction
arithmetic using four byte integers. The cast transforms it back to
a two byte char type.
Strings are just concatenations of zero or more chars. the charAt(i)
method returns you the i-th char in a string. Have a look:String s= "AB";
char a= 'A';
char b= (char)(a+1);
if (a == s.charAt(0)) System.out.println("yep");
if (b == s.charAt(1)) System.out.println("yep");This piece of code prints "yep" two times. If you want to compare two
Strings instead, you have to do this:String s= "AB";
char a= 'A';
char b= 'B';
String t= ""+a+b;
if (s.equals(t)) System.out.println("yep");Note the 'equals' method instead of the '==' operator. Also note that
string t was constructed using those two chars. The above was a
shorthand of something like this:StringBuffer sb= new StringBuffer("");
sb.append(a);
sb.append(b);
String t= sb.toString();This is all handled by the compiler, for now, you can simply use the '+'
operator if you want to append a char to a string. Note that it is not
very efficient, but it'll do for now.
Does this get your started?
kind regards,
Jos

Convert from String to Int

Hi,
I have a question.
How do I convert from String to Integer?
Here is my code:
try{
String s="000111010101001101101010";
int q=Integer.parseInt(s);
answerStr = String.valueOf(q);
catch (NumberFormatException e)
answerStr="Error";
but, everytime when i run the code, i always get the ERROR.
is the value that i got, cannot be converted to int?
i've done the same thing in c, and its working fine.
thanks..

6kyAngel wrote:
actually it convert the string value into decimal value.In fact what it does is convert the (binary) string into an integer value. It's the String representation of integer quantities that have a base (two, ten, hex etc): the quantities themselves don't have a base.
To take an integer quantity (in the form of an int) and convert it to a binary String, use the handy toString() method in the Integer class - like your other conversion, use the one that takes a radix argument.

Convert from char* to unsigned char*

Hi, I try compile example from: http://download-uk.oracle.com/docs/cd/B19306_01/appdev.102/b14294/relational.htm#i1000940
in Visual C++ and I have problem with:
const string userName = "SCOTT";
because string is defined as unsigned char* and "SCOTT" is char*, is any function to convert from type char* to type unsigned char* ?

I'm apologize for this stupid question, answer is very easy:
const string userName = (const unsigned char*) "SCOTT";

Converting from unsigned int / short to byte[]

Can anybody help me, I am trying to convert from:
- unsigned int to byte[]
- unsigned short to byte[]
I will appreciate your help lots. thanks.

@Op.
This code converts an integer to a byte[], but you have to consider the byte order:
        int value = 0x12345678;
        byte[] result = new byte[4];
        for (int i=3; i>=0; i--) {
            result[i] = (byte)(value & 0xff);
            value = value >> 8;
        }This is another option:
        int dummy = 7;
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        os.write(dummy);
        byte[] bytes = os.toByteArray();Kaj

How to convert from java.lang.Integer to int

Could you please show me
how to convert from java.lang.Integer to int?
and how to convert from java.lang.Integer to String?
Thanks,
Minh

Could you please show me
how to convert from java.lang.Integer to int?
and how to convert from java.lang.Integer to String?Tip: always keep a browser open on the API docs; if you've got a
couple of MBs to spare, download the docs; it's very convenient.
kind regards,
Jos

Convert from int to char

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