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






Returns the sign for long 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 long value <code>x</code>.
   * <p>
   * For a long value x, this method returns +1L if x > 0, 0L if x = 0, and
   * -1L if x < 0.</p>
   * 
   * @param x the value, a long
   * @return +1L, 0L, or -1L, depending on the sign of x
   */
  public static long sign(final long x) {
      return (x == 0L) ? 0L : (x > 0L) ? 1L : -1L;
  }
}

   
    
    
    
    
  








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