如果finally{}中没有return，
如果try{}正常，执行try{}return语句,如果异常执行catch{}中return语句，但是此事return语句返回在finally{}语句之后
package com.testJava.Exception;
public class TryCatchfFinally {
public static void main(String[] args){
TryCatchfFinally tcf = new TryCatchfFinally();
System.out.println(tcf.testException());
}
public String testException(){
try {
System.out.println("start try");
int[] a= {2};
for(int i=0 ; i<1;i++){//①
System.out.println(a[i]);
}
System.out.println("try end");
return "return of try not finally";
} catch (ArrayIndexOutOfBoundsException e) {
System.out.println("arrayIndexOutOfBoundsException");
return "return in catch arrayIndexOutOfBoundsException";
}catch(NullPointerException e){
System.out.println("nullPointerException");
return "return in catch";
}finally{
System.out.println("finally start try");
int[] a= {2};
for(int i=0 ; i<1;i++){//②
System.out.println(a[i]);
}
System.out.println("finallyend end end");
System.out.println("finally");
//return "return of finally";
}
//return "end fuction";
}
}
①处i=1运行结果：
start try
2
try end
finally start try
2
finallyend end end
finally
return of try not finally
①处i=2运行结果：
start try
2
arrayIndexOutOfBoundsException
finally start try
2
finallyend end end
finally
return in catch arrayIndexOutOfBoundsException
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finally{}中有错误，应该是直接退出