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Top Forums Programming Simplify setter and getter of java class Post 302990837 by yifangt on Wednesday 1st of February 2017 12:03:56 PM
Old 02-01-2017
Simplify setter and getter of java class

I am trying to verify my understanding on setter and getter on java class with this example:
Code:
//MaximumFinder2.java

import java.util.Scanner;

public class MaximumFinder2
{
    public static void main (String[] args)
    {
        Scanner input = new Scanner(System.in);
        System.out.print("Enter three floating numbers separated by spaces: ");
        double num1 = input.nextDouble();
        double num2 = input.nextDouble();
        double num3 = input.nextDouble();

        maximum max = new maximum(num1, num2, num3);

        System.out.println(max.getMaximum(num1, num2, num3));
    } //end of main()
} //end of class Maximum Finder2

and the maximum class
Code:
//maximum.java
public class maximum
{
    private double maximumValue;
//    public double a, b, c;

    maximum(double a, double b, double c) 
    {
        this.maximumValue = getMaximum(a, b, c);
    }

    public double getMaximum (double a, double b, double c) 
    {
        return setMaximum (a, b, c);
    }

    public double setMaximum (double x, double y, double z)
    {
        double maxVal = x;

        if (y > maxVal)
            maxVal = y;

        if (z > maxVal)
            maxVal = z;

        return maxVal;
    }
} //end of maximum class

The code is working, but I am not sure how to simplify the code for all those local variables: double a, b, c and double x, y, z. I tried using global version of them, which was commented out, to make the class simpler, but did not work. Are those local variables necessary to make the maximum class?
Thanks a lot!
 

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LEGENDRE(3)						User Contributed Perl Documentation					       LEGENDRE(3)

NAME
PDL::GSLSF::LEGENDRE - PDL interface to GSL Special Functions DESCRIPTION
This is an interface to the Special Function package present in the GNU Scientific Library. SYNOPSIS
Functions FUNCTIONS
gsl_sf_legendre_Pl Signature: (double x(); double [o]y(); double [o]e(); int l) P_l(x) gsl_sf_legendre_Pl_array Signature: (double x(); double [o]y(num); int l=>num) P_l(x) from 0 to n-1. gsl_sf_legendre_Ql Signature: (double x(); double [o]y(); double [o]e(); int l) Q_l(x) gsl_sf_legendre_Plm Signature: (double x(); double [o]y(); double [o]e(); int l; int m) P_lm(x) gsl_sf_legendre_Plm_array Signature: (double x(); double [o]y(num); int l=>num; int m) P_lm(x) for l from 0 to n-2+m. gsl_sf_legendre_sphPlm Signature: (double x(); double [o]y(); double [o]e(); int l; int m) P_lm(x), normalized properly for use in spherical harmonics gsl_sf_legendre_sphPlm_array Signature: (double x(); double [o]y(num); int n=>num; int m) P_lm(x), normalized properly for use in spherical harmonics for l from 0 to n-2+m. gsl_sf_conicalP_half Signature: (double x(); double [o]y(); double [o]e(); double lambda) Irregular Spherical Conical Function P^{1/2}_{-1/2 + I lambda}(x) gsl_sf_conicalP_mhalf Signature: (double x(); double [o]y(); double [o]e(); double lambda) Regular Spherical Conical Function P^{-1/2}_{-1/2 + I lambda}(x) gsl_sf_conicalP_0 Signature: (double x(); double [o]y(); double [o]e(); double lambda) Conical Function P^{0}_{-1/2 + I lambda}(x) gsl_sf_conicalP_1 Signature: (double x(); double [o]y(); double [o]e(); double lambda) Conical Function P^{1}_{-1/2 + I lambda}(x) gsl_sf_conicalP_sph_reg Signature: (double x(); double [o]y(); double [o]e(); int l; double lambda) Regular Spherical Conical Function P^{-1/2-l}_{-1/2 + I lambda}(x) gsl_sf_conicalP_cyl_reg_e Signature: (double x(); double [o]y(); double [o]e(); int m; double lambda) Regular Cylindrical Conical Function P^{-m}_{-1/2 + I lambda}(x) gsl_sf_legendre_H3d Signature: (double [o]y(); double [o]e(); int l; double lambda; double eta) lth radial eigenfunction of the Laplacian on the 3-dimensional hyperbolic space. gsl_sf_legendre_H3d_array Signature: (double [o]y(num); int l=>num; double lambda; double eta) Array of H3d(ell), for l from 0 to n-1. AUTHOR
This file copyright (C) 1999 Christian Pellegrin <chri@infis.univ.trieste.it> All rights reserved. There is no warranty. You are allowed to redistribute this software / documentation under certain conditions. For details, see the file COPYING in the PDL distribution. If this file is separated from the PDL distribution, the copyright notice should be included in the file. The GSL SF modules were written by G. Jungman. perl v5.8.0 2003-01-29 LEGENDRE(3)
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