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   ► KBTo/From GuidesC#Statements    Print This   

Cross Ref > Statements

By Mike Prestwood

C# versus Java: A side by side comparison between C# and Java.

 
Statements
 

Common statements such as if statements, loops, etc.

Exception Trapping

[Other Languages] 

Languages Focus

A common usage of exception handling is to obtain and use resources in a "try-it" block, deal with any exceptions in an "exceptions" block, and release the resources in some kind of "final" block which executes whether or not any exceptions are trapped.

C#:   try...catch...finally

C# uses a try...catch...finally statement to trap for errors.

try {}
catch {}
finally {}
Syntax Example:
try
{
int y = 0;
y = 1 / y;
}
catch
{
MessageBox.Show("you cannot divide by zero");
}
Java:   try/catch/finally
Syntax Example:
try {
  /* Risky code here. */
}
catch (SomeException) {        //one or more.
  /* Recovery here. */
}
finally {                      //0 or one.
  /* Do something. */
}




If Statement

[Other Languages] 
C#:   if..else if..else

Use () around evaluation with no "then".

Syntax Example:
Boolean x = true;


if (x)
{
MessageBox.Show("hello");
}
else if (x==false)
{
MessageBox.Show("goodbye");
}
else
{
  MessageBox.Show("what?");
}
Java:   if..else if..else

Syntax template:

if (expression) {
  expression1_true_code;
} else if (expression2) {
  expression2_true_code;
} else {
  otherwise_code;
}
Syntax Example:
if ((.1 + .1 + .1) == 0.3) {
  System.out.println("Correct");
} else {
  System.out.println("Not correct");
}




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