Java Error

:java:5: error: incompatible types: possible lossy conversion from int to short

형변환 에러

Index 5 out of bounds for length 5

배열에서 오류
컴파일 오류X, 실행시(runtime) 에러(익셉션

Error: Main method not found in class Student, please define the main method as:
public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

퍼블릭이 없는 class
public이 있는 class가 실행파일임

error: cannot inherit from final Parent

error: viewData() in Child cannot override viewData() in Parent