Notes

Outline

Learning Learning is a pull not a push. Learning takes effort Learning complex subjects requires dedicated brainpower

Strategies for learning Learn from an expert. - take a class - read the book they wrote.

Books are your friend. Typical website on HTML – 10 pages. Typical book on HTML – 200 pages. Indexed Ordered from basics to more complex stuff.

Reading for learning Read a section to start setting up a mental  framework. Try to use what you read. Read it again! Read a different book

Programming is a skill Learn by watching others Read the code they wrote Start with the basics - don’t jump in the deep end. Practice makes perfect

More on if. if (x > 3) ; g.drawString("x is too big", 50, 50);

; is empty statement. // if (x>3) don’t do anything if (x > 3) ;   // we don’t want this semicolon! // always write "x is too big" g.drawString("x is too big", 50, 50);

; = end // this is correct if (x > 3)     g.drawString("x is too big", 50, 50); // using curly braces is safer if (x > 3) { g.drawString("x is too big", 50, 50); }

infinite loop // Loop forever because we never get // to the statement that changes x. while (x < 3) ; x = x +1;

Reformat code to see problems Remember the compiler ignores all white space, so indentation is a convenience for us. while (x < 3) ; x = x +1; if (x > 3) ; g.drawString("x is too big", 100, 100);

While loop int counter = 0, x = 10; while ( counter < 8 ) { g.drawString("*", x, 20);    x = x + 10;    counter++;    // counter = counter + 1 }

While loop int counter = 0, x = 10; while ( counter < 8 ) { g.drawString("*", x, 20);    x = x + 10;    counter++;    // counter = counter + 1 }