Question

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Answer 1

Answer

• When there are many nested if statements but having only one else statement, then it is a case of dangling else statement.

• There could be confusion regarding to which if , the else statement belongs.  

   if (expr1) 

     if (expr2) 

              if (expr3)

                   else stmnt.

• Normally it belongs to the innermost.  But it depends on the language grammar definition.  It is better to put { } to clearly indicate the nesting.