Skip to main content

Type of input & output devices

 

Types of Disk I/O: Different ways to read from or write to a disk, including sequential (reading/writing data in order), direct (accessing specific locations), and buffered (using memory for efficiency).


11.2. Standard Input/Output: Default streams for input (keyboard) and output (screen) in a program, allowing interaction with users through text-based input and output operations.


11.3. Binary and Text Mode Files: Binary files store data in its raw binary format, while text mode files encode data as human-readable text, with additional processing for line breaks and encoding.


11.4. Program Record Input/Output: Input and output operations performed on groups of related data records, often used for database operations or processing structured data.


11.5. Random Access Files: Files that allow direct access to any location within them, enabling read/write operations at specific positions rather than sequentially.


11.6. Error Handling in File I/O: Techniques for detecting and managing errors that can occur during file input/output operations, such as handling file not found, permission issues, or disk full errors.


11.7. Redirection: The process of changing the default input or output stream of a program to/from a file, allowing input to come from a file instead of the keyboard or output to be redirected to a file instead of the screen.

Labels:

Comments

Post a Comment

Popular posts from this blog

CIT 212 Object Oriented Programming with Java Course outline 2nd year

 
Post a Comment
Read more

Short Q&A about constructors

  Q1: What is a constructor in Java, and when is it called? A1: A constructor in Java is a special method used to initialize objects. It is called when an instance of a class is created, allocating memory for the object in RAM. Q2: What happens if a class in Java does not have any constructor defined? A2: If a class in Java doesn't have any constructor defined, the Java compiler provides a default constructor by default. Q3: What are the two types of constructors in Java? A3: There are two types of constructors in Java:  1. No-arg constructor (Default constructor) 2. Parameterized constructor Q4: What are the rules for creating a Java constructor? A4: The rules for creating a Java constructor are as follows: - Constructor name must be the same as its class name. - A constructor must have no explicit return type. - A Java constructor cannot be abstract, static, final, or synchronized. Q5: What are the different access modifiers that can be used while declaring a constructor in ...
Post a Comment
Read more

Chapter No 6 Interface Java

  Chapter 6                      Interfaces   6.1 Introduction  6.2. Defining and Implementing Interfaces   6.3. Advantages of using Interface    6.1 Introduction   An interface in Java is a collection of abstract methods. It provides a way to achieve abstraction and multiple inheritance in Java. An interface is a blueprint for a class and allows the definition of methods without specifying the implementation. Classes implementing an interface must provide concrete implementations for all its methods.   Syntax   interface MyInterface{ {      // Declare methods (implicitly public and abstract)      void method1();      void method2(); }   Explanation   An interface is declared using the interface keyword.  Methods declared in the interface ar...
Post a Comment
Read more