Slide 9.7: Looping

Looping

C# provides several kinds of looping.

Do Loop
The formats and examples are

do {
   statement(s);
} while ( condition );

_____________________An example_____________________

do {
   num.Text = counter;
   counter  = counter + 1;
} while ( counter <= 1000 );

while ( condition ) {
   statement(s);
}

_____________________An example_____________________

while ( counter > 1000 ) {
   num.Text = counter;
   counter  = counter + 1;
}

For Loop
The format and an example are

 for ( init; condition; increment ) {
    statement(s);
 }

________________________An example________________________

 for ( counter = 1; counter <= 1000; counter += 1 ) {
    acc += counter;
 }

Nested Loops
The nested for loop format is

 for ( init; condition; increment ) {
    for ( init; condition; increment ) {
       statement(s);
    }
    statement(s);
 }

The nested while loop format is

 while ( condition ) {
    while ( condition ) {
       statement(s);
    }
    statement(s);
 }

The nested do ... while loop format is

 do {
    statement(s);
    do {
       statement(s);
    }
    while( condition );
 }
 while( condition );