system load_Java System类load（）方法及示例

怼烎@ 2023-03-05 15:56 11阅读 0赞

system load

## 系统类load()方法 **(**System class load() method**)** ##

*  **load() method** is available in java.lang package.
    
    **load()方法**在java.lang包中可用。
 *  **load() method** is used to load the java file with the given parameter named fn(filename) from a local file system.
    
    **load()方法**用于从本地文件系统中加载名为fn(filename)的给定参数的Java文件。
 *  **load() method** is a static method, it is accessible with the class name too.
    
    **load()方法**是静态方法，也可以使用类名进行访问。
 *  **load() method** may throw an exception at the time of file loading:
    
    **load()方法**在文件加载时可能会引发异常：
    
     *  **SecurityException**: In this exception, its checkLink() method does not allow load the specified file as passed in the method when the security manager exists.**SecurityException** ：在此异常中，当安全管理器存在时，其checkLink()方法不允许加载在该方法中传递的指定文件。
     *  **UnsatisfiedLinkError**: In this exception, if the loaded file does not exists in the library.**UnsatisfiedLinkError** ：在此异常中，如果库中不存在已加载的文件。
     *  **NullPointerException**: In this exception, if the loaded file name is null.**NullPointerException** ：在此异常中，如果加载的文件名为null。

**Syntax:**

**句法：**

public static void load(String fn);

**Parameter(s):**

**参数：**

*  String fn – represents the name of the file with complete file path.
    
    字符串fn –代表具有完整文件路径的文件名。

**Return value:**

**返回值：**

The return type of this method is void, it does not return anything.

此方法的返回类型为void ，它不返回任何内容。

**Example:**

**例：**

// Java program to demonstrate the example of 
    // load() method of System Class
    
    public class LoadMethod {
        
        public static void main(String[] args) {
        
            // load a library FP30TXT.dll that is in Windows/system folder
            System.out.println(" Process of Library Loading ");
            Runtime.getRuntime().load("C:/Windows/system/FP30TXT.dll");
            System.out.println("Process of Library Loading  completion");
        }
    }

**Output**

**输出量**

E:\Programs>javac LoadMethod.java
    E:\Programs>java LoadMethod
    Process of Library Loading
    Process of Library Loading completion

> 翻译自: [https://www.includehelp.com/java/system-class-load-method-with-example.aspx][https_www.includehelp.com_java_system-class-load-method-with-example.aspx]

system load

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