What class allows you to read objects directly from a stream

by

The ObjectInputStream class supports the reading of objects from input streams.

In Core Java, the class that allows you to read objects directly from a stream is ObjectInputStream. This class is part of the Java I/O (Input/Output) API and is used for deserializing objects from a stream. The ObjectInputStream reads data written by an ObjectOutputStream and reconstructs the original objects.

Here’s a basic example of using ObjectInputStream:

java
import java.io.*;

public class ObjectInputStreamExample {
public static void main(String[] args) {
try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream("example.ser"))) {
// Reading an object from the stream
MyClass obj = (MyClass) ois.readObject();

// Now, you can work with the deserialized object (obj)
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
}
}
}

In this example, example.ser is a serialized file containing objects of the class MyClass, and ObjectInputStream is used to read and deserialize these objects from the file.