ZCW-MacroLabs-OOP-ScientificCalculator/BasicCalculations.java

/**
 * A class to define math opeerations for the 
 * Calculator
 */
import java.lang.Math;
public class BasicCalculations extends Operations
{
    private int x;

    /**
     * Constructor for objects of class BasicCalculations
     */
    public BasicCalculations()
    {
        // initialise instance variables
        x = 0;
    }

    /**
     * An example of a method - replace this comment with your own
     *
     * @param  y  a sample parameter for a method
     * @return    the sum of x and y
     */
    public double sampleMethod(double y)
    {
        // put your code here
        return x + y;
    }

    public void add(double x, double y)
    {
        double z = x + y;
        update(z);

    }
    public double subtract(double x, double y)
    {
        double z = x - y;
        update(z);
        return z;
    }

    public double multiply(double x, double y)
    {
        double z = x * y;
        update(z);
        return z;
    }

    public void divide(double x, double y)
    {
        if (y == 0){
            System.out.println("Error");
            isError = true;
        } else { 
            double z = (x / y);
            update(z);

        }
    }

    public void square(double x){
        double z = x * x;
        update(z);
    }

    public void squareRoot (double x){
        double z = Math.sqrt(x);
        update(z);
    }

    public void power(double x,double y){
        double z = Math.pow(x,y);
        update(z);
    }

    public void sin(double x){
        double z = Math.sin(x);
        update(z);
    }

    public void cos(double x){
        double z = Math.cos(x);
        update(z);       
    }

    public void tan(double x){
        double z = Math.tan(x);
        update(z);
    }
    
    public void degrees(double x){
        double z = Math.toDegrees(x);
        update(z);
    }
    
    public void radians(double x){
         double z = Math.toRadians(x);
         update(z);
    }
    
    public void atan(double x){
        double z = Math.atan(x);
        update(z);
    }
    public void acos(double x){
        double z = Math.acos(x);
        update(z);
    }
    public void asin(double x){
        double z = Math.asin(x);
        update(z);
    }
    
    public void log(double x){
        double z = Math.log10(x);
        update(z);
    }
    
    public void round(double x) {
        double z = Math.round(x);
        update(z);
    }
    
    public void roundUp(double x) {
        double z = Math.ceil(x);
        update(z);
    }
    
    public void roundDown(double x) {
        double z = Math.floor(x);
        update(z);
    }
    
    public void inverse(double x) {
        double z = (1/x);
        update(z);
    }
}