What is Output

[Guest]

1) What will the value of txt be after executing MyFunction?

public void Main()
{
string txt = MyFunction( “12345†);
}

public string MyFunction( string str )
{
if( str.Length == 1 )
return str;
else
return MyFunction(str.Substring(1, str.Length - 1)) + str.Substring(0,1);
}
Hint:
String.Substring( startIndex, length )

 

[Nicholas Paldino [.NET/C# MVP]]

seema,

Have you compiled this and seen what will be output?

 

[Smithers]

It looks like someone doesn't want to do their own homework... will
eventually become a professional meeting attender (if not burger flipper).

-S

seema,

Have you compiled this and seen what will be output?


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

1) What will the value of txt be after executing MyFunction?

public void Main()
{
string txt = MyFunction( "12345" );
}

public string MyFunction( string str )
{
if( str.Length == 1 )
return str;
else
return MyFunction(str.Substring(1, str.Length - 1)) + str.Substring(0,1);
}
Hint:
String.Substring( startIndex, length )

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

Just run it using the debugger

 

[UL-Tomten]

It looks like someone doesn't want to do their own homework...

Bingo. The typographic quotes are a dead giveaway. =]

 

[Tom Porterfield]

1) What will the value of txt be after executing MyFunction?

public void Main()
{
string txt = MyFunction( “12345†);
}

public string MyFunction( string str )
{
if( str.Length == 1 )
return str;
else
return MyFunction(str.Substring(1, str.Length - 1)) + str.Substring(0,1);
}
Hint:
String.Substring( startIndex, length )

Not really a good hint as that gives no clue as to what will happen.
BTW, this is not the way I would code this, but it appears the goal was
to test the ability to follow a code path through a recursive function
without the aid of a debugger other than your internal debugger (the one
between your ears).

 

[Guest]

My Grandmother used to say that the way to learn about recursion is to study
recursion. She lived to be 100, by the way. It wasn't recursion that killed
her though. I think she had a stack overflow from some Clan McGregor scotch...