Search:

Java is very fussy about that.

Try using the editor's Find tool with the Match Case option set and find writeFile in your code to see what is found.

All variables used in a program must be defined. Here are some sample definitions:

int anIntVar; // define an int variable
String aStringVar; // Define a String variable
Scanner...

Where is the variable: writeFile defined? The compiler can not find its definition.

What line is the error on? Can you copy and paste the full text of the compiler's error message?
Here is a...

please copy and paste here the full text of the error message so we can see what the problem is.