Java 中的 CompoundName get()方法，示例

原文:https://www . geesforgeks . org/compound name-get-method-in-Java-with-examples/

一个 javax.naming.CompoundName 类的 get() 方法用于获取这个复合名称对象的一个组件。作为参数传递的位置，该参数用于从复合名称对象中获取出现在该位置的组件。

语法:

public String get(int posn)

参数:此方法接受 posn ，这是要检索的组件的基于 0 的索引。必须在[0，size()]范围内。

返回值:该方法返回索引 posn 处的组件。

异常:如果 posn 在指定范围之外，该方法抛出ArrayIndexOutOfBoundsException。

下面的程序说明了 CompoundName.get()方法: 程序 1:

// Java program to demonstrate
// CompoundName.get()

import java.util.Properties;
import javax.naming.CompoundName;
import javax.naming.InvalidNameException;

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

        // need properties for CompoundName
        Properties props = new Properties();
        props.put("jndi.syntax.separator", ":");
        props.put("jndi.syntax.direction",
                  "left_to_right");

        // create compound name object
        CompoundName CompoundName1
            = new CompoundName("a:b:z:y:x", props);

        // apply get()
        String pos1 = CompoundName1.get(0);
        String pos2 = CompoundName1.get(1);

        // print value
        System.out.println(pos1);
        System.out.println(pos2);
    }
}

Output:

a
b

程序 2:

// Java program to demonstrate
// CompoundName.get() method

import java.util.Properties;
import javax.naming.CompoundName;
import javax.naming.InvalidNameException;

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

        // need properties for CompoundName
        Properties props = new Properties();
        props.put("jndi.syntax.separator", "/");
        props.put("jndi.syntax.direction",
                  "left_to_right");

        // create compound name object
        CompoundName CompoundName1
            = new CompoundName(
                "c/e/d/v/a/b/z/y/x/f",
                props);

        // apply get()
        String pos3 = CompoundName1.get(3);
        String pos4 = CompoundName1.get(4);

        // print value
        System.out.println("position 3:"
                           + pos3);
        System.out.println("position 4:"
                           + pos4);
    }
}

Output:

position 3:v
position 4:a

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

版权属于：月萌API www.moonapi.com，转载请注明出处

本文链接：https://moonapi.com/news/19343.html