Java Double Number Format getFormat(double value)

Description

get Format

License

Apache License

Declaration

public static DecimalFormat getFormat(double value) 

Method Source Code

//package com.java2s;
/*/*ww  w .  ja v a 2s  .  c  om*/
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.math.RoundingMode;
import java.text.DecimalFormat;

public class Main {
    public static DecimalFormat getFormat(double value) {
        DecimalFormat format;
        if (value < 10) {
            // show up to two decimals to get 3 significant digits
            format = new DecimalFormat("#.##");
        } else if (value < 100) {
            // show up to one decimal to get 3 significant digits
            format = new DecimalFormat("#.#");
        } else {
            // show no decimals -- we have enough digits in the integer part
            format = new DecimalFormat("#");
        }

        format.setRoundingMode(RoundingMode.HALF_UP);
        return format;
    }
}

Related

1. formatDoubleToFixedLength(String value, int length)
2. formatDoubleToString(double d)
3. formatDoubleToString(double n)
4. formatDoubleWithPadding(String value, int length, char pad)
5. getFormat(double d)
6. getFormatAmount(Double d)
7. getFormattedNumber(Double number, int decimals, Locale locale)
8. getFormattedString(double d, int numDecimalPlaces)
9. getFormattedTwoDecimal(double d)