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Java Essential Training for Students

Solution: Monte Carlo

From the course: Java Essential Training for Students

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  • Course details

    Taking a college-level programming course? Maximize your learning with these Java tutorials. Peggy Fisher explores command-level programming, basic techniques such as managing loops and creating methods, debugging Java code, working with classes and objects, and storing and sorting arrays. Along the way, she investigates the Java API and Java's capabilities for running simulations and algorithm analysis, and issues challenges to write programs that utilize all of these Java features.

    Instructor

    • Click here to view Peggy Fisher’s instructor page

      Peggy Fisher

      Lecturer at Penn State University

      Peggy Fisher is a programmer and content manager at LinkedIn Learning.

      Peggy's main focus is application programming in Java, Arduino, and C++. She has also worked on courses in COBOL and discrete ,athematics. Previously she was a faculty member at Penn State University's College of Information Sciences and Technology. She started out as a programmer working for a large insurance company, but after 18 years she left her job as a director of information technology to pursue her true passion teaching. She earned a master's degree in math education, and went on to teach high school math and computer science in Pennsylvania. In 2012, Peggy accepted a position as an instructional designer at Penn State, and shortly thereafter began teaching Intro to Application Programming with Java. She is a strong supporter of women in STEM. As one of the few female programming teachers, she serves as a mentor to incoming female freshmen who are considering a career in programming. She was also the K–12 outreach coordinator for the college, where she scheduled, ran, and taught summer camps for middle school and high school students. In a PBS NewsHour interview, she expressed that all students should take at least one programming class either in high school or college. Peggy enjoys constantly learning and finding new and exciting ways to bring technology to life in and outside of the classroom, such as using Arduino microcontrollers or Lego Mindstorms, to help make learning hands-on and fun.

    Skills covered in this course

    For each course you will get

    • Exercise files and quizzes
    • Certificate of completion from LinkedIn
    • Offline and audio-only options
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  • Welcome

    - Welcome back, how did you make out with that last challenge? Well, I hope you had some success. I'd like to go over my solution, and as always remember, it might be different than yours. I have my Monte Carlo simulation set up to go through three different trials. One, with a 100 attempts, one with a 1000, and one with 10,000. Let's take a look at the actual Monte Carlo code itself. As you can see, I pass in the numTrials to the method marbleSimulation. On lines 28 and 29 I declare two static variables, one to represent the blue marbles has a value of 1, and a second variable to represent the white marbles which will hold a value of 2. On lines 31 and 32 I have two variables, double number record the number of successes, the number of times all three marbles are the same color. Double result will be the value that takes the number of successes divided by the numTrials. Starting on line 54 is my simulation loop. I'm gonna scroll down a little bit. Line 36 I add one to my total…

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