William Killian

Lecture 1

August 29, 2017

Homework

What println statements will generate the following output?

This program prints a
quote from the Gettysburg Address.

"Four score and seven years ago,
our 'fore fathers' brought forth on
this continent a new nation."

What println statements will generate the following output?

A "quoted" String is
'much' better if you learn
the rules of "escape sequences."

Also, "" represents an empty String.
Don't forget: use \" instead of " !
'' is not the same as "

Lecture 2

August 31, 2017

Lab 1

Lab 2

Lecture 3

September 7, 2017

Homework

Write a for-loop that will produce the following output:

System.out.println("1 squared = " + 1 * 1);
System.out.println("2 squared = " + 2 * 2);
System.out.println("3 squared = " + 3 * 3);
System.out.println("4 squared = " + 4 * 4);
System.out.println("5 squared = " + 5 * 5);
System.out.println("6 squared = " + 6 * 6);

Lab 3

Lecture 4

September 14, 2017

Lab 4

Lecture 4b

September 19, 2017

Lecture 5

Homework

Write the following methods (the first two are required and collected on Tuesday). Follow the template:

public static /* <<return type>> */ methodName ( /* <<parameters>> */ ) {
    /* code goes here */
    return /* return value */;
}

Write method countQuarters that takes an int number of cents and returns the number of quarters represented by that many cents. Don’t count dollars, as those will be dispensed as dollar bills.
- countQuarters(83) returns 3
- countQuarters(1256) returns 2
Write method distance that takes four int coordinates (x1, y1, x2, y2) and returns the distance between them
- distance(1, 2, 4, 6) returns 5.0
Write a method named calcArea that accepts a circle's radius as a double parameter and returns its area. HINT: use the constant Math.PI
Write a method named calcDistanceFromOrigin that accepts x and y coordinates as double parameters and returns the distance between the point (x,y) and the origin (0,0).
Write a method named calcAttendancePoints that accepts an integral number of lectures attended by a student, and returns how many points a student receives for attendance. The student receives 2 points for each of the first 5 lectures and 1 point for each subsequent lecture.

Lecture 6

September 26, 2017

Midterm Examination 1 Review

Midterm Exam #1

September 28, 2017

Lecture 7

October 5, 2017

Lab 5

Lecture 8

October 12, 2017

Lab 6

Lecture 9 (in Lab)

October 17, 2017

Lecture 10

October 19, 2017

Receipt,java

SnoopName.java

Lab 7

October 24, 2017

Lecture 11

October 26, 2017

DrawingPanel.java

DrawBob.java

Lab 8

October 31, 2017

Lecture 12

November 2, 2017

November 7, 2017

public static boolean ends(String s1, String s2) {
    return s1.length() >= 2 && s2.length() >= 2 && s1.endsWith(s2.substring(s2.length() - 2));
}

public static boolean pickSeven(Random r) {
    for (int i = 0; i < 10; i++) {
        int number = r.nextInt(30) + 1;
        System.out.print(number + " ");
        if (number == 7) {
            return true;
        }
    }
    return false;
}

public static int sumDigits(int number) {
    int sum = 0;
    while (number != 0) {
        int digit = number % 10;
        sum += digit;
        number /= 10;
    }
    return sum;
}