Casting Problem int to String

[Reggie McDougal]

I can't cast an int to a string so I can compare the values.

I get an incovertable types error when In try the assign the value of i to j as a string so I can check that the value matched in an option select box.

Can someone point me in the right direction.

  
for( int i=1; i<=31; i++) {
out.print("<OPTION VALUE="+i);
if(!dataIsNull) {
String j = (String)i;
if(j.equals(data.getDataElement("dob_day"))){
out.print(" selected");
} 
}
out.print(">" + i);
}
 

[Joyce Lee]

Hi Reggie,

can't cast an int to a string so I can compare the values.

// convert an int to String
int i = 1; 
String s = Integer.toString(i);

You can check out the Java API for more info.

Joyce
[ October 25, 2004: Message edited by: Joyce Lee ]

[Fisher Daniel]

Hi Reggie,
I think you got error when you do this...

  
String j = (String) i;

You cannot convert int primitive data type to String object directly..
You have to use wrapper class to do that, example

  
int i = 5;
String value = Integer.toString(i);

Hope this helps...
Correct me if I am wrong
daniel

[Sean Stephens]

Here's another way to do it, though probably slower than using the Integer wrapper class:

String j = ""+i;

[Ilja Preuss]

Originally posted by Sean Stephens:
Here's another way to do it, though probably slower than using the Integer wrapper class:

String j = ""+i;

This is an ugly hack - don't do it.

Another valid way to do it is

String.valueOf(i)