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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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- When working with classes, you'll hear the word Inheritance. So, what is Inherited? Inheritance provides a powerful and natural mechanism for organizing and structuring your software. This section explains how classes Inherit both state and behavior from their superclasses, and explains how to derive one class from another using the simple syntax provided by The Java Programming Language. Inheritance allows once class to be created based on the definition of another class. The new class inherits all the instance data and methods for the base class, thus reducing data redundancy. There are numerous real-life examples of this concept. For example, we might identify a shape class, which describes a wide range of shapes. For example, circles, rectangles, and triangles are all shapes. They all have some common characteristics, but then each one has additional features specific to that shape. For example, to calculate the area of a circle you need to know the radius, pi r squared. To find…
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