‘Object Assign’ Framework Usage Guide in Java Library
‘Object Assign’ Framework Usage Guide in Java Library
In the Java library, there is a very useful framework called "Object Assign", which can be used to merge and copy the attributes of objects.In this article, we will introduce how to use the "Object Assign" framework and some example code to demonstrate its usage.
1 Introduction
"Object Assign" is a framework introduced in Java 8, which is located in the Java.util package.It provides a simple way to combine and copy object attributes.Using "Object Assign", you can easily copy the attributes of one object to another.This is very useful for creating another object or merging two objects from one object.
2. Usage
To use the "Object Assign" framework, you need to follow the steps below:
2.1 Import the required class:
First, you need to import the required classes.In your Java class, add the following Import statements:
import java.util.Objects;
import java.util.Arrays;
2.2 Create object:
Next, create two objects, one as the source object, and the other as the target object.The source object is the object you want to copy or merge attributes, and the target object is the object you want to copy the attribute to it.
MyClass sourceObject = new MyClass("Value 1", 10);
MyClass targetObject = new MyClass("Value 2", 20);
2.3 Use "Object Assign":
Now you can use the "Object Assign" framework to copy the property of the source object into the target object.Use the `Objects.assign () method to implement this.
Objects.assign(targetObject, sourceObject);
This will bring the attributes of the source object ("Value 1" and 10 to the target object.At present, the attributes of the target object will be the same as the source object.
3. Example code
In order to better understand how to use the "Object Assign" framework, the following is a simple example code:
import java.util.Objects;
public class MyClass {
private String value;
private int number;
public MyClass(String value, int number) {
this.value = value;
this.number = number;
}
// Getters and Setters
public static void main(String[] args) {
MyClass sourceObject = new MyClass("Value 1", 10);
MyClass targetObject = new MyClass("Value 2", 20);
System.out.println ("Source object attributes:" + SourceObject.getValue () + "," + SourceObject.getnumber ());
System.out.println ("target object attributes: + targetObject.getValue () +", " + targetObject.getNumber ()););););););
Objects.assign(targetObject, sourceObject);
System.out.println ("The target object attribute after copying:" + targetObject.GetValue () + "," + targetObject.getnumber ());
}
}
Run the above code, you will see the following output results:
Source object attribute: Value 1, 10
Target object attribute: Value 2, 20
Copy target object attributes: Value 1, 10
As you can see, the attributes of the source object have been successfully copied to the target object.
4. Summary
In this article, we have learned how to use the "Object Assign" framework in the Java library to merge and copy the attributes of the object.We understand its usage and provide an example code to demonstrate its function.Using "Object Assign", you can easily copy object attributes, which is very useful for creating new objects or merging objects.If you want to learn more about more relevant information, please check the official Java document.
