try-finally is a clause used to define a block of code which may throw an exception along with instructions to execute regardless of whether an exception occurs or not.
I would like some advice on a technique I bumped onto. It can be easily understood by looking at the code snippets, but I document it somewhat more in the following paragraphs.
Using the "Code Sandwich" idiom is commonplace to deal with resource…
Will the writer.close() method inside the finally { } block run on an Junit Assertion Error?
Assume the following code:
@Test
public void testWriter() {
try {
writer.open();
final List myBeans = new…
I've been playing around with the Visual Studio 14 CTP 2. This version of C# vNext enables the use of the await keyword inside a finally block.
I am trying to figure out how this was implemented. I know this is an implementation detail and is…
Hi What is the best way to do nested try & finally statements in delphi?
var cds1 : TClientDataSet;
cds2 : TClientDataSet;
cds3 : TClientDataSet;
cds4 : TClientDataSet;
begin
cds1 := TClientDataSet.Create(application );
try
…
I thought that if I use "try" and just "finally" else, without any "except", if the "try" statements couldn't be executed, the "finally" statements should be executed, but after that, an error should be shown in the execution, but in this simple…
When reading from a text file, one typically creates a FileReader and then nests that in a BufferedReader. Which of the two readers should I close when I'm done reading? Does it matter?
FileReader fr = null;
BufferedReader br = null;
try
{
fr =…
If I have a coroutine as follows, will the code in the finally block get called?
public IEnumerator MyCoroutine(int input)
{
try
{
if(input > 10)
{
Console.WriteLine("Can't count that high.");
yield break;
}
…
Suppose I have the following routine:
function ReadFile(f : TFilename) : Boolean;
var
fs : TFileStream;
begin
Result := False;
try
fs := TFileStream.Create(f, ...);
try
// read file ...
Result := True;
finally
…
Is there any way to simulate a try-finally or try-except in a language that doesn't have them?
If there's some random, unpredictable, exception happens i need to be sure some cleanup runs.
i could try to be sure that no exception in thrown, that way…
An empty try has some value as explained elsewhere
try{}
finally
{
..some code here
}
However, is there any use for an empty finally such as:
try
{
...some code here
}
finally
{}
EDIT: Note I have Not actually checked to see if the CLR has…
For example:
/**
* Constructor
*/
public Test(InputStream in){
try{
this.inputStream = in;
} finally{
inputStream.close();
}
}
Is the InputStream that is passed to the instructor immediately closed after the Test object is…
If I try the following code, I see that the normal block return value is not returned, but the finally block return value is:
>>> def f():
... try:
... return "normal"
... finally:
... return "finally"
...
>>>…
I am trying to understand the mechanism when i use finally inside a while loop.
In the below code. In finally line prints and than the while breaks. I was expecting the code not to reach the finally block. Or if it reaches the finally block, there…
