Java Number Compare compare(Object o1, Object o2)

Description

compare

License

Apache License

Declaration

public static int compare(Object o1, Object o2) 

Method Source Code

//package com.java2s;
/*/*from  w  w w  .  j  a  v  a  2 s . co m*/
 * Copyright 2016, Liraz Shilkrot
 *
 * 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.BigDecimal;

public class Main {
    public static int compare(Object o1, Object o2) {
        int result = 0;

        if (o1 != null) {
            result = 1;

            if (o2 != null) {
                if (o1 instanceof String) {
                    result = ((String) o1).compareTo((String) o2);
                } else if (o1 instanceof Integer) {
                    result = ((Integer) o1).compareTo((Integer) o2);
                } else if (o1 instanceof Float) {
                    result = ((Float) o1).compareTo((Float) o2);
                } else if (o1 instanceof Double) {
                    result = ((Double) o1).compareTo((Double) o2);
                } else if (o1 instanceof BigDecimal) {
                    result = ((BigDecimal) o1).compareTo((BigDecimal) o2);
                } else if (o1 instanceof Long) {
                    result = ((Long) o1).compareTo((Long) o2);
                }
            }
        } else if (o2 != null) {
            result = -1;
        }

        return result;
    }
}

Related

1. compare(final Number x, final Number y)
2. compareDoubleAgainstLong(double lhs, long rhs)
3. compareDoublesWithTolerance(double aa, double bb, double tolerance)
4. compareStringsAsNumbers(String s1, String s2, String op)
5. compareTo(double v1, double v2)