1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
| package Java0324.Lecture13.Exception;
import java.io.FileReader;
abstract class Parent{
public abstract void print();
public abstract void scan() throws Exception;
}
class Child extends Parent{
@Override
public void print() {
}
@Override
public void scan() throws Exception {
}
}
public class ExceptionMain05 {
public static void main(String[] args) {
Child obj = new Child();
obj.print();
// obj.scan();
try {
obj.scan();
} catch(Exception e) {
}
// b();
/*
try {
b();
} catch(Exception ae) {
System.out.println("main() 예외처리");
ae.printStackTrace();
}
*/
// a();
}
public static void b() throws Exception {
System.out.println("b() 메소드 호출...");
String str = null;
System.out.println(str.charAt(0));
System.out.println(1/0);
}
public static void a() {
System.out.println("a() 메소드 호출...");
try {
FileReader fr = new FileReader("a.txt");
} catch(Exception e) {
e.printStackTrace();
}
}
}
|
