Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2010 Actuate Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *  Actuate Corporation  - initial API and implementation
 *******************************************************************************/

import java.math.BigDecimal;

public class Main {
    protected static final BigDecimal MIN_POSITIVE_DECIMAL_NUMBER = new BigDecimal("0.000000000000001");
    protected static final BigDecimal MAX_POSITIVE_DECIMAL_NUMBER = new BigDecimal(10e15)
            .subtract(MIN_POSITIVE_DECIMAL_NUMBER);
    protected static final BigDecimal MIN_NEGATIVE_DECIMAL_NUMBER = new BigDecimal(-10e14)
            .add(new BigDecimal("0.000000000000001"));
    protected static final BigDecimal MAX_NEGATIVE_DECIMAL_NUMBER = MIN_POSITIVE_DECIMAL_NUMBER.negate();

    public static boolean displayedAsScientific(Object number) {
        BigDecimal num = getBigDecimal(number);
        if (num.compareTo(MAX_POSITIVE_DECIMAL_NUMBER) <= 0 && num.compareTo(MIN_POSITIVE_DECIMAL_NUMBER) >= 0) {
            return false;
        }
        if (num.compareTo(MAX_NEGATIVE_DECIMAL_NUMBER) <= 0 && num.compareTo(MIN_NEGATIVE_DECIMAL_NUMBER) >= 0) {
            return false;
        }
        return true;
    }

    private static BigDecimal getBigDecimal(Object number) {
        BigDecimal num = null;
        if (number instanceof BigDecimal) {
            num = (BigDecimal) number;
        } else {
            num = new BigDecimal(number.toString());
        }
        return num;
    }
}