Java Class desiredAssertionStatus()用法及代码示例

java.lang.Class类的desiredAssertionStatus()方法用于获取此类的声明状态，该状态将在调用此方法时分配给该类。该方法以布尔值的形式返回此类的断言状态。

用法:

public boolean desiredAssertionStatus()

参数：此方法不接受任何参数

返回值：此方法以布尔值的形式返回此类的指定断言状态。

下面的程序演示了desiredAssertionStatus()方法。

范例1：

// Java program to demonstrate 
// desiredAssertionStatus() method 
  
import java.util.*; 
  
public class Test { 
  
    public Object obj; 
  
    public static void main(String[] args) 
        throws ClassNotFoundException 
    { 
  
        // returns the Class object for this class 
        Class myClass = Class.forName("Test"); 
  
        System.out.println("Class represented by myClass:"
                           + myClass.toString()); 
  
        // Get the Assertion Status of myClass 
        // using desiredAssertionStatus() method 
        System.out.println("Assertion Status of myClass:"
                           + myClass.desiredAssertionStatus()); 
    } 
}

输出：

Class represented by myClass:class Test
Assertion Status of myClass:false

范例2：

// Java program to demonstrate 
// desiredAssertionStatus() method 
  
import java.util.*; 
  
class Main { 
  
    private Object obj; 
  
    public static void main(String[] args) 
        throws ClassNotFoundException, NoSuchFieldException 
    { 
  
        try { 
  
            // returns the Class object for this class 
            Class myClass = Class.forName("Main"); 
  
            System.out.println("Class represented by myClass:"
                               + myClass.toString()); 
  
            // Get the Assertion Status of myClass 
            // using desiredAssertionStatus() method 
            System.out.println("Assertion Status of myClass:"
                               + myClass.desiredAssertionStatus()); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}

输出：

Class represented by myClass:class Main
Assertion Status of myClass:false

参考： https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#desiredAssertionStatus-

相关用法

注：本文由纯净天空筛选整理自srinam大神的英文原创作品 Class desiredAssertionStatus() method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。