"내가 어떻게 생각하는지 알아?"
"그게 뭐야, 친구?"
"당신은 거의 내 수준에 도달했습니다. 곧 당신은 스스로 프로그램을 작성할 수 있을 것입니다."
"진심이야, 디에고?"
"당연하지, 이 도미새끼야. 하하. 아직 더 배우고 또 배워야 한다. 하지만 징징대는 건 그만둬. 알아서 해!"
4
과제
Java Core, 레벨 4, 레슨 4
Building and School
There are ordinary buildings, and there are school buildings. Make one inherit the other, and think about the type of object the getSchool and getBuilding methods should return. Change null to a Building or School object.
8
과제
Java Core, 레벨 4, 레슨 4
Cats
Create an application for a cat census. First, ask the user to enter cat names. Then the program should create Cat objects with the appropriate names and display the result of cat.toString().
8
과제
Java Core, 레벨 4, 레슨 4
Food
We will create a menu framework for restaurants, more precisely—a function for selecting food. First, we implement the Selectable interface in the Food class, and the onSelect() method, which should display "The food was selected". Think about which methods can be called with the variable food and which with the variable selectable.
4
과제
Java Core, 레벨 4, 레슨 4
No mistakes
In this task, once again something is wrong. So you need to fix something. Specifically, set obj equal to an object that allows the main method to run error-free.
4
과제
Java Core, 레벨 4, 레슨 4
Player and Dancer
On Planet Terra, practically every dancer or player is a human. The same is true in this incomplete program you have in front of you. Take a look at what it does already, and then change the haveFun method so that it calls the play method for players and the dance method for dancers.