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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.
Lecturer at Penn State UniversityPeggy 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.
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- OK, it's challenge time. In this challenge, let's use the Monte Carlo simulation to calculate the probability of selecting a certain marble from a bowl of marbles. I want you to estimate the probability of getting three of the same color marbles if you randomly select the marbles from a bowl that has a total of six marbles. Three are white, and three are blue. I think for this challenge, I'd like to give you a series of steps that you can follow, or an algorithm. Start by creating unique variables, one to represent whether or not it's a blue marble, and one for whether or not it's a white marble. Add variables to keep track of the attempts, and the number of successes. Then set up your loop for the simulation. Create an array to simulate the bowl. So the array will have six objects that hold the unique variables for blue and white. Three of those objects should represent blue and three should represent white at the beginning. Create a second array that only has three marbles. This…
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