There is a variable with a null value at line 25 in the Graphs class. Look at that line and see what variable is null then find out why it does not have a valid value.
Type: Posts; User: Norm
There is a variable with a null value at line 25 in the Graphs class. Look at that line and see what variable is null then find out why it does not have a valid value.
That statement calls the static method main in the class named className and passes it a String array containing one element: filename.txt
What do you mean by "call that class"? The above...