ObjectStreamClass getField(String) in Java

getField(String): This method is available in the java.io.ObjectStreamClass class of Java.

Syntax:

ObjectStreamField java.io.ObjectStreamClass.getField(String name)

This method takes one argument. This method gets the field of this class by name.

Parameters: One parameter is required for this method.

name: the name of the data field to look for.

Returns: The ObjectStreamField object of the named field or null if there is no such named field.

Exceptions: NA

Approach

Java

import java.io.ObjectStreamClass;

public class ObjectStreamClassgetField {
    public static void main(String[] args) {

        ObjectStreamClass objectStreamClass = 
               ObjectStreamClass.lookup(String.class);

        System.out.println(objectStreamClass.getField("name"));
    }
}

Output:

null

Some more methods of ObjectStreamClass

forClass(): This method returns the class to the local VM that this version is mapped to.

getFields(): This method returns an array of the fields of this serializable class.

getName(): This method returns the name of the class described by this descriptor.

getSerialVersionUID(): This method returns the serialVersionUID for this class.

lookup(Class): This method creates an ObjectStreamClass instance if one does not exist yet for the class.

lookupAny(Class): This method returns the descriptor for any class, regardless of whether it implements Serializable.

toString(): This method returns a string describing this ObjectStreamClass.