Java 中的 CompositeName clone()方法，示例

原文:https://www . geesforgeks . org/composite name-clone-method-in-Java-with-examples/

一个 javax.naming.CompositeName 类的 clone() 方法用于返回这个复合名称对象的副本。如果您对此原始复合名称的组件进行任何更改，都不会影响复合名称对象的新副本，反之亦然。

语法:

public Object clone()

参数:此方法不接受任何内容。

返回值:该方法返回该复合名称的非空副本。

下面的程序说明了 CompositeName.clone()方法: 程序 1:

// Java program to demonstrate
// CompositeName.clone()

import javax.naming.CompositeName;
import javax.naming.InvalidNameException;

public class GFG {
    public static void main(String[] args)
        throws InvalidNameException
    {

        // create Composite name object
        CompositeName compositeName
            = new CompositeName("x/y");

        // create clone object
        CompositeName cloneComposite
            = (CompositeName)compositeName.clone();

        // print CompositeName
        System.out.println("Clone CompositeName: "
                           + cloneComposite);
    }
}

Output:

Clone CompositeName: x/y

程序 2:

// Java program to demonstrate
// CompositeName.clone() method

import java.util.Enumeration;

import javax.naming.CompositeName;
import javax.naming.InvalidNameException;

public class GFG {
    public static void main(String[] args)
        throws InvalidNameException
    {

        // create Composite name object
        CompositeName compositeName
            = new CompositeName("x/y/z/a");

        // create clone object
        CompositeName cloneComposite
            = (CompositeName)compositeName.clone();

        // print CompositeName
        System.out.println("Clone CompositeName: "
                           + cloneComposite);
        System.out.print("Members: ");
        Enumeration<String> enumeration
            = cloneComposite.getAll();
        while (enumeration.hasMoreElements())
            System.out.print(enumeration.nextElement()
                             + ", ");
    }
}

Output:

Clone CompositeName: x/y/z/a
Members: x, y, z, a,

参考文献:https://docs . Oracle . com/javase/10/docs/API/javax/naming/composite name . html # clone()

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