Int to string?

I have an int that I would like to make to a String. How?
Why dos'nt this work?
int a = 5;
String t = toString(a);

Does the class this is in have a toString method? If not, that's why it doesn't work. The standard idiom for converting an int to a String is to say:
String value = myInt + "";Lee

Similar Messages

String to Int and Int to String

How can I convert a string to Int & and an Int to String ?
Say I've
String abc="234"
and I want the "int" value of "abc", how do I do it ?
Pl. help.

String.valueOf(int) takes an int and returns a string.
Integer.parseInt(str) takes a string, returns an int.
For all the others long, double, hex etc. RTFM :)

Conversion of int to String

hi,
Do someone know which way of converting the int to String is better? In term of performance and other issues in the handset:
1. int a = 5;
String b = a + "";
2. int a = 5;
String b = String.valueOf(a);
Thank you!

Hi,
The second method is better. Because for the first method 3 String objects will be created.

Converting int to String

How can we convert from int to String?
Ex:
int i = 5;
Then i need that 5 in String format....
Message was edited by:
kiran_panga

String.valueOf(i)
According to http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html
public static String valueOf(int i)
Returns the string representation of the int argument.

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;

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

Convert an int in string

I wrote this code to convert an int in string but is failed.
Someone might help me. thanks
String UID="select max(right(CodiceUtente,4)) from Utenti";
     ResultSet rs=st.executeQuery(UID);
     int massimo=rs.getInt("CodiceUtente") + 1;
          //massimo deve essere trasformato in una stringa. Come si fa?
     String maxim =toString();
my email is [email protected]

Try this one: String maxim = toString(massimo).
Find out more from the API (hope it accepts this long
URL that should point directly to the right place) :
http://www.ttu.ee/it/vorgutarkvara/wai4040/jdkdoc/jdk1.
2.2/docs/api/java/lang/String.html#toString()

Ints to Strings

Can someone please tell me how I can convert an 'int' into a 'String'??
The problem i am having is that i want to use some 'int' values and display them in a GUI TextField but I cant coz they are ints and a TextField only accepts Strings.
So i want to be able to use the setText( ) method to do this after the conversion.
Thanx.
[K]

then you look up javadocs,
Integer:
valueOf
public static Integer valueOf(String s)
throws NumberFormatException
Returns an Integer object holding the value of the specified String. The argument is interpreted as representing a signed decimal integer, exactly as if the argument were given to the parseInt(java.lang.String) method. The result is an Integer object that represents the integer value specified by the string.
In other words, this method returns an Integer object equal to the value of:
new Integer(Integer.parseInt(s))
Parameters:
s - the string to be parsed. Returns:
an Integer object holding the value represented by the string argument. Throws:
NumberFormatException - if the string cannot be parsed as an integer.
intValue
public int intValue()
Returns the value of this Integer as an int.
Specified by:
intValue in class Number
Returns:
the numeric value represented by this object after conversion to type int.
String:
suggestions above.

Checking wheter is "int" or "String"

Hi..
I would like to know is there a way to know if an attribute type is int or String while executing my application.
I heard "why do you wanna know?", that is just because this attribute belongs to another class and I'm gonna use it in every class. Later it's possible this attribute will change it's type so I would provide some if statements now, for don't have trouble with it later.
Thanks in advance.

Hi..
I would like to know is there a way to know if an
attribute type is int or String while executing my
application.
I heard "why do you wanna know?", that is just because
this attribute belongs to another class and I'm gonna
use it in every class. Later it's possible this
attribute will change it's type so I would provide
some if statements now, for don't have trouble with it
later.
Thanks in advance.What do you mean by "attribute type"?
How will it change its type? - if you change a variable type from int to String or vice versa, then code that uses it won't compile anyway.
Are you doing something unusual with reflection? If you are, could you post some code that demostrates what you actually want to do?

Conversion from int to String

How can i convert an int to a String.
There is no direct String constructor that take only an integer.
Thanks

int num = 1;
String str = "" + num;
or
int num = 1;
String str = Integer.toString(num);

Converting int to string, adding to string then pointing to an url

So I'm getting a null pointer exception here's a snippet of my code (theres plus signs on both sides of the a in my code):
private Image[] tiles;
public Map() {
for(int a=0; a<9; a++){
ImageIcon aa = new ImageIcon(this.getClass().getResource("mapsquares"+a+".png"));
tiles[a] = aa.getImage();
I've also tried:
private Image[] tiles;
public Map() {
for(int a=0; a<9; a++){
ImageIcon aa = new ImageIcon(this.getClass().getResource("mapsquares$s.png", String.valueOf(a)));
tiles[a] = aa.getImage();
whats wrong with either of these?
Edited by: Wub on Feb 28, 2013 3:17 PM

1.) You should use code tags when posting code.
2.) You should read the stacktrace closely to find out which exact line number in your code threw the exception.
My guess is that it's the line tiles[a] = aa.getImage(); because you didn't initialize the array tiles using the new operator. This is just a guess since you didn't post the full stacktrace. Also, NullpointerExceptions are one of the easiest to debug. Just adding print out lines at strategic values can show you which variables are initialized and which ones are not.

Int to string to string array

Sorry, if my question is too wordy.
First, the problem -- I am reading integers into my application and converting the those into strings using valueOf(). I then need to use those strings in a switch statment. The only way I could figure how to do this was to use the same String variable in each switch statement but change the the message to fit each case. My professor suggested I use an array list instead.
Second, the question -- how can I convert the String I have generated into a String Array and use the indexing of the array to correspond to the specific text for each case?
Thank you.

indeed, you can't use the switch mechanism on strings.
but, if the requirement is that you convert an integer into a string and then switch on those (I don't know why...) from an array of the values, swap the String value back into an int and switch from there.

Int into string?

I know this is possible, but how do you do it? I'm making a game, and I want a score on the screen at all times. How do I tell the game to take an int value of the score, and make it possible to turn it into a string, in order to represent it on the screen?
I've been trying to do "ScoreText.text=Score;" is there a way to make that work? or do I need to use a different method entirely.

Use: ScoreText.text=String(Score);

Is there a way to convert an int to string

My example
String s = "";
int one = 1;
int two = 2;
s = one - two;
I tried somethings but cannot seem to get by this one.
Thanks in advance
Adam

What are you trying to do? Subtract int two from int one and get the result as a String? That's what it looks like you're trying to do, try this...
String s = "";
int one = 1;
int two = 2;
s = (new Integer(one - two)).toString();This will set s equals to the String 1.

Finding whether int or String

I have a string variable and I have to find whether the value of the variable is
number or characters.
How can I do it in java?
I was thinking of casting the variable to integer and if true then the value
is integer, if false then string. I think this is not a good way of doing it?
any idea. thanks.

This is what i did, and its not showing any error at the moment.
Is the following right way to do it
> if(somevariable.getClass().toString()).equals("java.lang.String")){
}else{
That's not the way to do it because your 'somevariable' is a String.
Either check every character in that string for being a digit or not, or
let the Integer class do the dirty work:try {
   int theValue= Integer.parseInt(somevariable);
   // yes, it succeeded, so it was an int ...
catch (NumberFormatException nfe) {
   // nope, the string didn't represent an integer number
}kind regards,
Jos

Int to string?

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