Basic Structures

1
Basic Structures

• Structured Programming in C/C
• sequence
• decision/selection/testing
• iteration/repetition/looping

2
Statement while - loop
Flowchart
Syntax
3
Example while-loop
int i //declare an integer counter variable i i
0 //(1) initialization of counter variable
i while ( i lt 10 ) //(2) check condition //do
tasks i i 1 //(3) adjust condition //end
of for-loop
4
Statement for - loop
Flowchart
Syntax
5
Example for-loop
int i //declare an integer counter variable
i for ( i 0 i lt 10 i i 1) //do tasks
//end of for-loop
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for-loop VS while-loop

• The for-loop is preferred if using a counter is
  needed.
• Both has the following basic steps
• Initialization of condition
• Check condition
• Adjust condition