Chapter 4

API Contents

SCJP EXAM OBJECTIVES COVERED IN THIS CHAPTER:

  • Develop code that uses the primitive wrapper classes (such as Boolean, Character, Double, Integer, etc.), and/or autoboxing and unboxing. Discuss the differences between the String, StringBuilder, and StringBuffer classes.
  • Given a scenario involving navigating file systems, reading from files, writing to files, or interacting with the user, develop the correct solution using the following classes (sometimes in combination), from java.io: BufferedReader, BufferedWriter, File, FileReader, FileWriter, PrintWriter, and Console.
  • Develop code that serializes and/or de-serializes objects using the following APIs from java.io: DataInputStream, DataOutputStream, FileInputStream, FileOutputStream, ...

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