please help to solve it.

public class Solution {
    public static void main(String[] args) {
        double d = (short) 2.50256e2d;
        System.out.println("d=  " + d);
        char c = (short) 'd';
        String str = String.valueOf(c); // convert "c" to string. "str" will be equal to char 'd'
        int c_As_Int = str.codePointAt(0); // The Unicode code-number of the char 'd'
        System.out.println("c=  " + c_As_Int);
        short s = (short) 2.22;
        System.out.println("s=  " + s);
        int i = (short) 150000;
        System.out.println("i=  " + i);
        float f = (short) 0.50f;
        System.out.println("f=  " + f);
        double result = f + (i / c) - (d * s) - 500e-3;
        System.out.println("i/c=  " + i/c);
        System.out.println("d*s=  " + d*s);
        System.out.println("500e-3=  " + 500e-3);
        System.out.println("result: " + result);
    }
}