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Java Package getName()用法及代码示例


java.lang.Package类的getName()方法用于获取此程序包的名称。该方法以String形式返回包的名称。

用法:

public String getName()

参数:此方法不接受任何参数。


返回值:此方法以字符串形式返回包的名称。

下面的程序演示了getName()方法。

示例1:

// Java program to demonstrate getName() 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 name of myPackage 
        // using getName() method 
        System.out.println("Name of myPackage: "
                           + myPackage.getName()); 
    } 
}
输出:
Package represented by myPackage: package java.lang, Java Platform API Specification, version 1.8
Name of myPackage: java.lang

示例2:

// Java program to demonstrate getName() 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 getName() method 
        System.out.println("Name of myPackage: "
                           + myPackage.getName()); 
    } 
}
输出:
Package represented by myPackage: package java.io, Java Platform API Specification, version 1.8
Name of myPackage: java.io

参考: https://docs.oracle.com/javase/9/docs/api/java/lang/Package.html#getName–



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