shift operator with int ,float, double source code

/* This  Program is a simple java Application showing that
>> ,<< cannot be used on float and double.*/
package operators;

public class ShiftNotFloat {

   
    public static void main(String[] args) {
        float a = 22.22f;
        double d =33.33;
        //float b= a<<2;//error ?
        //int c = (int)(a <<2); //error ?
        int c = (int)a <<2;
        System.out.println(" c = " + c);
        c = (int)d<<1;
        System.out.println(" c = " + c);

    }

}


output:
c = 88
 c = 66