5.7 What's the difference between do...while and while?

A. Introduction The third and last type of flow is all about repetitions: how to repeat some actions exact N times? or how to repeat some actions until certain status is achieved? There are actually three types of statements: for loops, while loops and do loops. B. Watch( Slides ) C. Try: Print out a multiplication table from 1 x 1 = 1 .... to 9 x 9 = 81. (Hint: you need a for loop inside a for loop)

A. Introduction You were asked to use for-loops to print out a multiplication table, for-loops and nested for-loops are widely used for many applications. Here are some examples. B. Watch( Slides ) C. Try to print out the upper half or the lower half of a multiplication table like this:

A. Introduction There are probably millions of programs in the world now, but all programs are made of three different "flows", or control structures: sequential, branching and looping. Sequential execution goes from top to bottom, line by line. Branching execution allows you to make decisions based on a condition: You can even embed a branching structure in one branch: Or, making one decision right after another: B. So what's the third and last type of flow (control structure)? C. Try to write some pseudo code to add all even numbers between 200 and 300.