Suggestion for improved coding convention in “Objects” chapter, exemplified by a modified version of Code example 25-04:

Spot spot; // Declare the object

void setup() {
  size(100, 100);
  noStroke();
  spot = new Spot(33, 50, 30); // Construct the object
}

void draw() {
  background(0);
  spot.display();
}

class Spot {
  // Data members
  float m_xpos, m_ypos, m_diameter;
  
  // Constructor
  Spot(float xpos, float ypos, float diameter) {
    m_xpos = xpos; // Set x-coordinate
    m_ypos = ypos; // Set y-coordinate
    m_diameter = diameter; // Set diameter
  }

  // Display function
  void display() {
    ellipse(m_xpos, m_ypos, m_diameter, m_diameter);
  }
}

Suggestion for Page 424 in chapter “Arrays”: In addition to mentioning the arrayCopy(array1,array2) function, which copies the elements from array1 to array2, a footnote (and entry to the “Code Index”) about

array2 = array1.clone()

might be useful for the reader.

The former is prone to blow an ArrayIndexOutOfBoundsException if array2 does not have at least as many slots as array1.

The latter creates a new array2 of the same size and contents as the original array1.

(I'm not Java-savvy, but come from a C/C++ background, so I was wondering about “deep copy” vs. “reference” of the others array in Codes 33-13 and 33-14 on pages 521–522.)

First full reading finished. Issue ready to be processed. 😉

Thank you for these! That was a tremendous amount of work. I'm sending the following on to the publisher:

• Page xvii, line -7: “the ability to create refined graphics”
• Page 43, lines 7–8: “until it is changed again”
• Page 101, code 7-32: replace the second height with width
  . last line of code, "line(0, mouseY, width, mouseY);"
• Page 103, lines 13–14: “… into a more compact, but equivalent expression.”
• Page 103, line 17: “…, it makes it easier to …”
• Page 146, Second line, first paragraph: there appears to be a double blank in “a file”
• Page 165, Examples 13-4 is missing its image
• Page 195, line -8: “the center of the letter O”
• Page 195, line -2: “cut the smaller triangle out of the larger”
• Page 195, line -1: “beginContour()”
• Page 218, line -12: “In addition to storing“
• Page 289, line -10: “The next example shows …”
• Page 299: Premature break after "Montfort" between lines 4 and 5.
• Page 299, line 6: “greater than 0.5”
• Page 306, line 17: “If direction is 1, then direction will become -1 and vice versa.”
  . "If direction is 1, then it will become -1 and vice versa."
  . Note: make sure the text from the former page doesn't wrap back
• Page 316: In the comments of code 22-11 replace large circles with large circle.
  . "// Set the position of the large curcle based on the"
• Page 341, line -11: “because [the] first parameter must be …”
• Page 407, line 24: un-slant “Messa di Voce”
• Page 415, line -6: “chart demonstrate some”
• Page 429, line 3: “diagram above into code:”.
• Page 440, line 3: excessive spacing in “AARON ’s” to “AARON’s”
• Page 495, line 12: Rephrase with one ‘available’ less. "adding tags or structure"
• Page 500, line 18: delete duplicate ‘length’ "the length of the array is printed"
• Page 547, line -15: “Programmers decide …”
• Page 551, line 6: “The setup() in this example …”
• Page 556, line -4: “… are the primary ways …”
• Page 563, line 5: Add space betore * “... (sin(angle) * curveWidth);”
• Page 565, lines -6 and -7: Add a space before *
• Page 573, line -9; y1 = height/2;
• Page 590, line 2: “wonder if I would have made”
• Page 610, line 10: missing closing parenthesis for “(p. 604) for text”
• Page 622, line 6: “The name C++ is a geeky way”
• Page 623, line -5: delete one “the” at the end
• Page 624, line 8: “with the additional of”
• Page 627, entry “Cohen, Harold”: replace hyphen with en-dash in “1973–1999”