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
- The last topic in this section is called the Enhanced for Loop. The Enhanced for Loop works really well with both arrays and ArrayLists. After creating an array, you can easily traverse the array using the Enhanced for Loop. The syntax is a little strange at first, but it reduces the coding needed to go through the entire array. Some quick notes about the Enhanced for Loop, it can only be used when you wanna start at the first element of the array, and go through all the way to the end. And another note is that you cannot have any code in the loop that alters the contents of the array. You can kind of think of it as a loop that will allow you to read the elements in an array, or an array list. I wanna show you how to use the Enhanced for Loop with both a regular array, and an ArrayList. I'm gonna go back to my ArrayExamples, and I'm gonna show you how we can use an Enhanced for Loop for a couple of these arrays. I'll put this at the bottom. So an Enhanced for Loop looks like this…
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