Sure, here is a basic overview of the topic:

1. Input/Output Basics: In Java, input and output operations are performed through streams. A stream is an abstraction that either produces or consumes information. There are two types of streams: byte streams and character streams.

2. Byte Streams: Byte streams provide a convenient means for handling input and output of bytes. They are used, for instance, when reading or writing binary data. In Java, byte streams are represented by two key abstract classes: InputStream and OutputStream. Each of these classes has several concrete subclasses that handle different types of byte input and output.

3. Character Streams: Character streams are designed for handling the input and output of characters. They are used when reading or writing text data. In Java, character streams are represented by two key abstract classes: Reader and Writer. Like byte streams, these also have several concrete subclasses for different purposes.

4. Reading and Writing Console: Java provides several ways to read from and write to the console. The java.io.Console class is one of them. It provides methods to read text and password. If you read password using Console class, it will not be displayed to the user. The java.util.Scanner class is a simple text scanner which can parse primitive types and strings using regular expressions. It is used for reading text from the console.

Here is a simple example of reading and writing using Console:

import java.io.Console;  
public class ConsoleExample {  
public static void main(String[] args) {  
    Console c=System.console();  
    System.out.println("Enter your name: ");  
    String n=c.readLine();  
    System.out.println("Welcome "+n);  
}  
}  

In this example, we are reading a string from the console and then printing a welcome message to the console.