public static boolean isAbstract(int mod)

// Java program to illustrate isAbstract() method
  
import java.lang.reflect.*;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // get Method class object
        Method[] methods
            = Shape.class.getMethods();
  
        // get Modifier Integer value
        int mod = methods[0].getModifiers();
  
        // check Modifier is Abstract or not
        boolean result = Modifier.isAbstract(mod);
  
        System.out.println("Mod integer value "
                           + mod + " is Abstract : "
                           + result);
    }
  
    abstract class Shape {
  
        public abstract String drawShape();
    }
}

Mod integer value 1025 is Abstract : true

// Java program to illustrate isAbstract()
  
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 Abstract or not
        boolean result1 = Modifier.isAbstract(mod1);
        boolean result2 = Modifier.isAbstract(mod2);
  
        // print results
        System.out.println("Mod integer value "
                           + mod1 + " for method "
                           + methods[0].getName()
                           + " is Abstract : "
                           + result1);
  
        System.out.println("Mod integer value "
                           + mod2 + " for method"
                           + methods[1].getName()
                           + " is Abstract : "
                           + result2);
    }
  
    // sample abstract class
    abstract class Numbers {
  
        public abstract int initializeNumber();
        public final int declareNumbers()
        {
            return 0;
        };
    }
}

Mod integer value 1025 for method initializeNumber is Abstract : true
Mod integer value 17 for methoddeclareNumbers is Abstract : false