How to test if a certain String containg another String? 2

[thelordoftherings]

Hello,

I have a String at this format: 1,2,3,4...
I would like to test if this String contains a certain int inside it. How can I do it without splitting the String to an Array by "," and go over it each time I want to check? Can someone please show me how to do it in regexp?

 

[odenc]

You could do something like the following:

String myString = "1,2,3,4";
int myNumber=2;
boolean myBoolean = myString.indexOf(valueOf(myNumber)) > 0;

if myBoolean is true then the number is in the string.

 

[sedj]

Or :

if (stringOne.indexOf(stringTwo) != -1) {
   // stringTwo is within stringOne
} else {
   // stringTwo is not within stringOne
}

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