Returns the sign for int value x

   
import java.math.BigDecimal;

/* 
 * Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.
 *
 *
 */
public class Main {
  /**
   * Returns the <a href="http://mathworld.wolfram.com/Sign.html"> sign</a>
   * for int value <code>x</code>.
   * <p>
   * For an int value x, this method returns +1 if x > 0, 0 if x = 0, and -1
   * if x < 0.</p>
   * 
   * @param x the value, an int
   * @return +1, 0, or -1, depending on the sign of x
   */
  public static int sign(final int x) {
      return (x == 0) ? 0 : (x > 0) ? 1 : -1;
  }
}

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Returns the sign for int value x : int « Data Type « Java

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