How to extract everything left or right of a space from a variable passed from a form?

you can do

String[] atoms = field.split("\\s*");

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You can split the string into array using spaces " " as delimiter.

String nameStr = "JOHN DOE" ;
String[] nameStrArr = nameStr.split(" ");

So if you call nameStrArr[0], the output is JOHN as nameStrArr[1] output is DOE.

Hope this help

I am confused on how to write this.
Is this correct?

String nameStr = request.getParameter("MYFIELD");   //field passed from form "JOHN DOE"
String[] nameStrArr = nameStr.split(" ");                      //splits the passed field
String nameStrArr[0] SYS=nameStr.split(" ");               //declare SYS value
String nameStrArr[1] SUBSYS=nameStr.split(" ");         //declare SUBSYS value

Try this:

String nameStr = request.getParameter("MYFIELD");   //field passed from form "JOHN DOE"
String[] nameStrArr = nameStr.split(" ");                      //splits the passed field
String SYS = nameStrArr[0];               //declare SYS value - JOHN
String SUBSYS = nameStrArr[1];         //declare SUBSYS value - DOE

I think you should probably not make the assumption that there are two atoms only, so do

int numAtoms = atoms.length

I tested this, but am getting this error:
String nameStr = request.getParameter("MYFIELD");   //field passed from form "JOHN DOE"
String[] nameStrArr = nameStr.split(" ");           //splits the passed field
String SYS = nameStrArr[0];                                 //declare SYS value - JOHN
String SUBSYS = nameStrArr[1];                                 //declare SUBSYS value - DOE

/////////////////////////////////////////////////////////////////////////////////////////////////

ERROR:
"Exception: java.lang.ArrayIndexOutOfBoundsException: 1 "

I ran this test, and got this result:

<%
String nameStr = request.getParameter("MYFIELD");   //field passed from form "JOHN DOE"
String[] nameStrArr = nameStr.split(" ");           //splits the passed field
String SYS = nameStrArr[0];                                 //declare SYS value - JOHN
%>

RESULTS:
<%= nameStr %> = JOHN DOE
<%= SYS %> = JOHN DOE

It appears that this line is not splitting the name:   String[] nameStrArr = nameStr.split(" ");

Where do I go from here?

>>"Exception: java.lang.ArrayIndexOutOfBoundsException: 1 "

As i said, don't assume the array has two elements. Also use the regex i posted

Chej,

I appreciate your candor.
Can you PLEASE give me a code example to solve this issue?

I tried this, but it doesn't work.
It fails on SYS.

<%
String nameStr = request.getParameter("MYFIELD");   //field passed from form "JOHN DOE"
String[] nameStrArr = nameStr.split(" ");           //splits the passed field
for (int i=0;i<nameStrArr.length;i++)
String SYS = nameStrArr[0];                                 //declare SYS value - JOHN
%>
<%= SYS %>

Try something like the following:

<%
String nameStr = request.getParameter("MYFIELD");
String[] nameStrArr = nameStr.split("\\s*");           //splits the passed field
switch (nameStrArr.length) {
	case 1:
		// Single name
		String name = nameStrArr[0];
		break;
	case 2:
		// Two parts to name
		String firstName = nameStrArr[0];
		String lastName = nameStrArr[1];
		break;
	case 3:
		// Three parts to name - perhaps middle name given - discard it
		String firstName = nameStrArr[0];
		String lastName = nameStrArr[2];
		break;
	default:
		// Error condition - handle it
 
		
}
%>

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Cehj,

I have ran your suggestion code for a two part string, but get an error when trying to output the value of the firstName and lastName strings to check their values.

<%
String nameStr = request.getParameter("MYFIELD");
String[] nameStrArr = nameStr.split("\\s*");           //splits the passed field
switch (nameStrArr.length) {
      case 1:
            // Two parts to name
            String firstName = nameStrArr[0];
            String lastName = nameStrArr[1];
            break;
      default:
            // Error condition - handle it
}
%>

<%= firstName %>&nbsp;<%= lastName %>

////////////////////////////////////////////////////////////////////////////////////////////////

HER IS THE ERROR:

"cannot resolve symbolsymbol  : variable firstName location: class com.ibm._jsp._sys_5F_subsys_5F_test      out.print( firstName );                
                                                                                   ^"

"cannot resolve symbolsymbol  : variable lastName location: class com.ibm._jsp._sys_5F_subsys_5F_test      out.print( lastName );                
                                                                                   ^"

Increasing points.

>>I have ran your suggestion code for a two part string

That's not what i gave you for a two part String. It should be case 2

If you want to print the values, you must do so within the block in which they're declared, not outside it

This is so frustrating.

I have your code example in place.
However, it does not return anything when I try to output the results.

I am expecting to output firstName and lastName. but nothing.
Can you test from your end and pass it a form field value?

Sorry for being such a burden.

Super!
This now works fantastic.

Thank you very much for your time and efforts!

Thank you!

:-)