How to split a string into half in android?

I have a string i want to split it into half?

开发者_高级运维

String Data = "This is a string"

This is an example string. In the real case i will not know what is inside the string, how long it is etc

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String data = "This is a string";
String half1 = data.subString(0, data.length() / 2);
String half2 = data.subString(data.length()/2);

Also, remember that Strings are immutable, you can't just call data.subString(data.length()/2); and expect that data will be changed. You have to assign the returned String to some variable (as in my example).

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If you want to use substring then you can do like this:

String val1 = data.substring(0, data.length()/2);
String val2 = data.substring(data.length()/2);

It's a common logic that if you want exact half then split it by its-length/2.

Also, don't start variable name with capital letter.