CSE110 Lecture 18

Principles of Programming with Java
Review
(202006)

Transcript

1. CSE110
   Principles of Programming
   with Java
   Lecture 18:
   Review for the Second Midterm
   Javier Gonzalez-Sanchez
   javiergs@asu.edu
   javiergs.engineering.asu.edu | javiergs.com
   Office Hours: By appointment
   

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2. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 2
   Midterm 1
   

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3. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 3
   Midterm 2
   

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4. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 4
   Disclaimer
   The following questions are just examples.
   They are NOT a comprehensive list of topics
   Review All the Slides for a full list of topics
   The exam is NOT limited to the topics covered in this review.
   Midterm Exams are comprehensive
   

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5. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 5
   Day 10
   switch statement
   1. Ask the user for a number 1 to 3
   2. If the number is not 1, 2, or 3 show an error
   message “invalid input” and ask again.
   3. If number 1 print “stone”
   4. If number 2 print “paper”
   5. If number 2 print “scissor”
   Operator ?
   • Ask for two integer numbers (a and b)
   • Using operator ?, store the highest in a new
   variable.
   

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6. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 6
   Day 11
   while and do-while statements
   1. Ask the user for a number (1 to 10)
   2. If the numbers are not 1 to 10 show an error
   message “invalid input” and ask again.
   3. Draw a square using the two numbers as length.
   For instance, if the user input 3 and 6, draw
   ******
   ******
   ******
   

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7. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 7
   Day 12
   for statements
   In mathematics, the Fibonacci numbers are the numbers in the following
   integer sequence, called the Fibonacci sequence, and characterized
   by the fact that every number after the first two is the sum of the two
   preceding ones
   0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144,…
   

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8. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 8
   Day 13
   Conditions and loops
   Draw this pattern in the screen. Example 6 x 20
   0***|0***|0***|0****
   *0**|*0**|*0**|*0***
   **0*|**0*|**0*|**0**
   ***0|***0|***0|***0*
   ****0****0****0****0
   ****|0***|0***|0****
   

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9. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 9
   Day 15
   Object-oriented programming
   1. Create a class Box
   2. Include a variables: length, width, and height
   3. Create a method that return the volume of the box, called
   calculateVolume()
   4. Create a class MyProgram that have a method main(). It
   creates two boxes, put values to their dimensions, and print
   their volumes calling calculateVolume()
   

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10. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 10
    Day 16
    Classes and Objects
    Create the classes needed to make this line work:
    public class Exam{
    public static void main (String []a) {
    Doctor doc = new Doctor();
    Doctor.color = "white”;
    doc.name = "Dr. Who”;
    doc.age = 90;
    doc.writePrescription(); // This is your prescription
    doc.hello(); //print name, age, and color.
    }
    }
    

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11. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 11
    Day 17
    Methods
    Create the classes needed to make this line work:
    public class Exam{
    public static void main (String []a) {
    Genius g = new Genius();
    double x = g.areaOfCirleWithRadius(10);
    double x = g.areaOfTriangle(10,20);
    g.printFirst5FibonacciNumbers();
    g.printFirst9FibonacciNumbers();
    }
    }
    

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12. Javier Gonzalez-Sanchez | CSE110 | Summer 2020 | 12
    Disclaimer
    The following questions are just examples.
    They are NOT a comprehensive list of topics
    Review All the Slides for a full list of topics
    The exam is NOT limited to the topics covered in this review.
    Midterm Exams are comprehensive
    

    View Slide

13. CSE110 - Principles of Programming
    Javier Gonzalez-Sanchez
    javiergs@asu.edu
    Summer 2020
    Disclaimer. These slides can only be used as study material for the class CSE110 at ASU. They cannot be distributed or used for another purpose.
    

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