java 用示例将 getImplementationTitle()方法打包到 Java 中

用示例将 getImplementationTitle()方法打包到 Java 中

原文:https://www . geesforgeks . org/package-getimplementation title-method-in-Java-with-examples/

java.lang.Package 类 的 getImplementationTitle() 方法用于获取此包的实现标题。方法以字符串形式返回包的实现标题。

语法:

public String getImplementationTitle()

参数:此方法不接受任何参数。

返回值:该方法将包的实现标题作为字符串返回，如果知道的话。否则返回空值

下面的程序演示了 getImplementationTitle()方法。

例 1:

// Java program to demonstrate
// getImplementationTitle() method

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

        // returns the Package
        // object for this package
        Package myPackage
            = Package.getPackage("java.lang");

        System.out.println(
            "Package represented by myPackage: "
            + myPackage.toString());

        // Get the implementation title of myPackage
        // using getImplementationTitle() method
        System.out.println(
            "Implementation title of myPackage: "
            + myPackage.getImplementationTitle());
    }
}

输出:

Package represented by myPackage: package java.lang, Java Platform API Specification, version 1.8
Implementation title of myPackage: Java Runtime Environment

例 2:

// Java program to demonstrate
// getImplementationTitle() method

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

        // returns the Package
        // object for this package
        Package myPackage
            = Package.getPackage("java.io");

        System.out.println(
            "Package represented by myPackage: "
            + myPackage.toString());

        // Get the name of myPackage
        // using getImplementationTitle() method
        System.out.println(
            "Implementation title of myPackage: "
            + myPackage.getImplementationTitle());
    }
}

输出:

Package represented by myPackage: package java.io, Java Platform API Specification, version 1.8
Implementation title of myPackage: Java Runtime Environment