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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.
Skills covered in this course
- Now that we've done a quick review of Arrays, let's talk about the Arrays API that's included in the Java JDK. The Arrays API can be used if you include the java.util.Arrays at the top of your program. It contains many useful array Methods. Some of the Methods include, Search Methods, Comparison Methods, Fill Methods, Copy Methods, and Sort Methods. Let's take a look at a program that uses some of these. I have a program called SampleAPIs. On line 14, 15, 16 and 17, I declare a few Arrays. One's an integer array called numbers, that just has some random numbers. Then I have a char array, that lists all the vowels. Notice, since it's a char array, the vowels all have ' around them. And then I have two boolean arrays, that contain some boolean values, such as true, false, false, true, true. I know in programming problems, you have to try and find a value in an array, you wanna search for it. A pretty efficient search is called the binary search. But a binary search requires that the…
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