// The MIT License (MIT)

//

// Copyright (c) 2017 Robert C. Seacord

//

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to deal

// in the Software without restriction, including without limitation the rights

// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

// copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

//

// The above copyright notice and this permission notice shall be included in all

// copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

// SOFTWARE.

package NUM08J;

class FPinput {

private static double currentBalance; // User's cash balance

private static void doDeposit(String userInput) {

double val; // initialized to zero

try {

val = Double.valueOf(userInput);

} catch (NumberFormatException e) {

System.err.println("input format error"); //$NON-NLS-1$

return;

}

if (!Double.isFinite(val)) {

System.err.println("value is not finite"); //$NON-NLS-1$

return;

}

if (val >= Double.MAX_VALUE - currentBalance) {

System.err.println("input range error"); //$NON-NLS-1$

return;

}

System.err.println("updating balance"); //$NON-NLS-1$

currentBalance += val;

}

public static void main(String[] args) {

doDeposit("-Infinity"); //$NON-NLS-1$

doDeposit("Infinity"); //$NON-NLS-1$

doDeposit("NaN"); //$NON-NLS-1$

doDeposit("-infinity"); //$NON-NLS-1$

doDeposit("infinity"); //$NON-NLS-1$

doDeposit("nan"); //$NON-NLS-1$

}

}

/*

// Returns true if the argument is a finite floating-point value;

// returns false otherwise (for NaN and infinity arguments).

if (!Double.isFinite(val)) {

System.err.println("value is not finite");

return;

}

if (Double.isInfinite(val)) {

System.err.println("input is infinite");

return;

}

if (Double.isNaN(val)) {

System.err.println("input is NaN");

return;

}

if (val >= Double.MAX_VALUE - currentBalance) {

System.err.println("input range error");

return;

}

System.err.println("updating balance");

currentBalance += val;

}*/