Why doesnt simple copy paste from solo learn to net beans ide work?

Question

i copy pasted my code ( calculator using switch case) it runs perfectly on solo learn without any errors. however net beans ide shows some kind of error.
https://code.sololearn.com/cLqsXTnY9IDi/?ref=app

Answer 1

float f = dd.nextInt();
float h = dd.nextInt();

Lines 15 and 18 should use nextFloat();

Answer 2

thanks