Java Constructor isSynthetic()用法及代碼示例

// Java program to illustrate isSynthetic() method 
  
import java.lang.reflect.Constructor; 
  
public class GFG { 
  
    public static void main(String[] args) 
    { 
        // create a class object 
        Class classObj = shape.class; 
  
        // get Constructor object 
        // array from class object 
        Constructor[] cons = classObj.getConstructors(); 
  
        // check isSynthetic or not 
        boolean answer = cons[0].isSynthetic(); 
  
        // print result 
        System.out.println("isSynthetic : " + answer); 
    } 
  
    @CustomAnnotation(createValues = "GFG") 
    public class shape { 
  
        @CustomAnnotation(createValues = "GFG") 
        public shape() 
        { 
        } 
    } 
  
    // create a custom annotation 
    public @interface CustomAnnotation { 
        public String createValues(); 
    } 
    }

// Java program to illustrate isSynthetic() method 
  
import java.lang.annotation.Annotation; 
import java.lang.reflect.Constructor; 
  
public class GFG { 
  
    public static void main(String[] args) 
    { 
        // create a class object 
        Class classObj = String.class; 
  
        // get Constructor object 
        // array from class object 
        Constructor[] cons = classObj.getConstructors(); 
  
        for (int i = 0; i < cons.length; i++) { 
  
            System.out.println("Constructor: "
                               + cons[i]); 
  
            // get array of isSynthetic 
            boolean answer = cons[0].isSynthetic(); 
  
            // print result 
            System.out.println("isSynthetic : " + answer); 
        } 
    } 
}