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java编程思想这本书上的一道练习题,题目是:定义三种新的异常类型,写一个类,在一个方法中抛出三种异常,在main中调用这个方法,仅用一个catch捕获三个异常
public
class
CatchMultiException {
public
static
void
main(String[] args)
throws
Exception {
try
{
test(
2
);
}
catch
(Exception e) {
if
(e
instanceof
TestAException || e
instanceof
TestBException
|| e
instanceof
TestCException) {
e.printStackTrace();
}
else
{
throw
e;
}
}
}
public
static
void
test(
int
a)
throws
TestAException, TestBException,
TestCException {
if
(a ==
0
) {
throw
new
TestAException();
}
if
(a ==
1
) {
throw
new
TestBException();
}
if
(a ==
2
) {
throw
new
TestCException();
}
}
}
class
TestAException
extends
Exception {
private
static
final
long
serialVersionUID = 1L;
}
class
TestBException
extends
Exception {
private
static
final
long
serialVersionUID = 1L;
}
class
TestCException
extends
Exception {
private
static
final
long
serialVersionUID = 1L;
}
public
static
void
main(String[] args) {
try
{
test(
2
);
}
catch
(TestAException | TestBException | TestCException e) {
e.printStackTrace();
}
}
转自:
http://bbs.csdn.net/topics/370216093
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原文地址:http://www.cnblogs.com/autumnlj/p/5689835.html