The isNative(mod) method of java.lang.reflect.Modifier is used to check if the integer argument includes the native modifier or not. If this integer parameter represents native type Modifier then method returns true else false.
Syntax:
public static boolean isNative(int mod)
Parameters: This method accepts a integer names as mod represents a set of modifiers.
Return: This method returns true if mod includes the native modifier, false otherwise.
Below programs illustrate isNative() method:
Program 1:
// Java program to illustrate isNative() method  import java.lang.reflect.Method;import java.lang.reflect.Modifier;  public class GFG {      public static void main(String[] args)        throws NoSuchFieldException    {          // get Method class object        Method[] methods            = Calculator.class.getMethods();          // get Modifier Integer value        int mod = methods[0].getModifiers();          // check Modifier is native or not        boolean result = Modifier.isNative(mod);          System.out.println("Mod integer value "                           + mod + " is native : "                           + result);    }      class Calculator {        native void addNumbers();    }} |
Output:
Mod integer value 17 is native : false
Program 2:
// Java program to illustrate isNative()  import java.lang.reflect.*;  public class GFG {      public static void main(String[] args)    {          // get Method class object        Method[] methods            = Numbers.class.getMethods();          // get Modifier Integer value        int mod1 = methods[0].getModifiers();        int mod2 = methods[1].getModifiers();          // check Modifiers are native or not        boolean result1 = Modifier.isNative(mod1);        boolean result2 = Modifier.isNative(mod2);          // print results        System.out.println("Mod integer value "                           + mod1 + " for method "                           + methods[0].getName()                           + " is native : "                           + result1);          System.out.println("Mod integer value "                           + mod2 + " for method"                           + methods[1].getName()                           + " is native : "                           + result2);    }      // sample native class    abstract class Numbers {          abstract public int initializeNumber();        int declareNumbers()        {            return 0;        }    }} |
Output:
Mod integer value 1025 for method initializeNumber is native : false Mod integer value 17 for methodwait is native : false
References: https://docs.oracle.com/javase/10/docs/api/java/lang/reflect/Modifier.html#isNative(int)
