以下所示:html
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class Exc{
int a;
int b;
}
public class Except {
@SuppressWarnings(
"finally"
)
static int compute (){
Exc e =
new
Exc();
e.a = 10;
e.b = 10;
int res = 0 ;
try
{
res = e.a / e.b;
System.out.println(
"try ……"
);
return
res + 1;
}
catch
(NullPointerException e1){
System.out.println(
"NullPointerException occured"
);
}
catch
(ArithmeticException e1){
System.out.println(
"ArithmeticException occured"
);
}
catch
(Exception e3){
System.out.println(
"Exception occured"
);
}finally{
System.out.println(
"finnaly occured"
);
}
System.out.println(res);
return
res+3;
}
public static void main(String[] args){
int b = compute();
System.out.println(
"mian b= "
+b);
}
}
|
输出:java
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try
……
finnaly occured
mian b= 2
|
结论: 若是没有异常, 则执行try 中的代码块,直到 try 中的 return,接着执行 finally 中的代码块,finally 执行完后 , 回到try 中执行 return 。退出函数。程序员
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|
class Exc{
int a;
int b;
}
public class Except {
@SuppressWarnings(
"finally"
)
static int compute (){
Exc e =
new
Exc();
// e.a = 10;
// e.b = 10;
int res = 0 ;
try
{
res = e.a / e.b;
System.out.println(
"try ……"
);
return
res + 1;
}
catch
(NullPointerException e1){
System.out.println(
"NullPointerException occured"
);
}
catch
(ArithmeticException e1){
System.out.println(
"ArithmeticException occured"
);
}
catch
(Exception e3){
System.out.println(
"Exception occured"
);
}finally{
System.out.println(
"finnaly occured"
);
}
System.out.println(res);
return
res+3;
}
public static void main(String[] args){
int b = compute();
System.out.println(
"mian b= "
+b);
}
}
|
输出:面试
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ArithmeticException occured
finnaly occured
0
mian b= 3
|
结论: 若是try 中有异常, 则在异常语句处,跳转到catch 捕获的异常代码块, 执行完 catch 后,再执行 finally ,跳出 try{}catch{}finally{} ,继续向下执行,不会去执行try中 后面的语句。算法