CompSci Exam Review (Looping)

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• Loop

• a structure that allows repetitive execution of a block of statements

• Loop Body

• block of statements within a looping structure

• Types of C# Loops

• while loop

• for loop

• do loop

• do - while loop

• While Loop

• executes a body of statements continuously as long as some condition to be true

• Ways you can Alter the Control Variable

• incrementing

• decrementing

• Definite lop or Counted loop

• loop for which number of interactions is predetermined

• Indefinite Loop

• Value of a loop control variable is not altered by arithmetic, but is instead altered by the user

• For loop

• short hand way t create definite loops

• a.k.a the pretest loop

• Sections of For loop

• initializing, testing, and updating the control variable

• Do Loop

• checks at the bottom of the loop after one reptation has occurred

• convenient when you want to perform a task at least once

• a.k.a the postest loop

• Nested Loop

• contains an inner loop and an outer loop

• loops cant over lap

• Sentinal Value

• value of the same data type but not a legal data value

• ex: double total =0;

• Improving Loop Performance

• make sure the loop doesn’t include unnecessary operators or statements

• ex: while (x < a+b) say int sum = a + b

  while ( x < sum)