수다닷컴

1. Which statements are true? (정답3개)A. Assertion checking is typically enabled when a program is deployed.
B. It is never appropriate to write code to handle failure of an assert statement
C. Assertion checking is typically enabled during program development and

testing.
D. Assertion checking can be selectively enabled of disabled on a per-package

basis, but not on a per-class basis.
E. Assertion checking can be selectively enabled of disabled on both a per-

package basis and a per-class basis.
정답:BCE
해석을 해봐두.. 왜 BCE 인줄 모르겠어요.
2.

public int loadFile(String file){
assert file !=null; //check the file name
try{
DateInputStream in = new DataInputStream(new FileInputStream

(file));
switch(in.readInt()){
case 42: return 42;
default : assert false;
}
}catch(IOException ioe){
assert false;
}
assert false; //should never be reached
return -1;
}
제가 주석처리 해놓은 부분에서 에러가 나는데요. != 이부분을 = 로 해야한다네요. 왜

죠?

그리고 밑에 assert false는 왜 에러가 나는건가요..
고수님들 알려주세요.

꼬옥 좀 알려주세요..~

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