1 /*
   2  * Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package org.openjdk.bench.java.lang;
  26 
  27 import org.openjdk.jmh.annotations.Benchmark;
  28 import org.openjdk.jmh.annotations.BenchmarkMode;
  29 import org.openjdk.jmh.annotations.Mode;
  30 import org.openjdk.jmh.annotations.OutputTimeUnit;
  31 import org.openjdk.jmh.annotations.Param;
  32 import org.openjdk.jmh.annotations.Scope;
  33 import org.openjdk.jmh.annotations.State;
  34 
  35 import java.util.concurrent.TimeUnit;
  36 
  37 @BenchmarkMode(Mode.AverageTime)
  38 @OutputTimeUnit(TimeUnit.NANOSECONDS)
  39 @State(Scope.Thread)
  40 public class Characters {
  41 
  42     @Param({"9", "48", "65", "97", "170", "192", "223"})
  43     private int codePoint;
  44 
  45     @Benchmark
  46     public boolean isDigit() {
  47         return Character.isDigit(codePoint);
  48     }
  49 
  50     @Benchmark
  51     public boolean isLowerCase() {
  52         return Character.isLowerCase(codePoint);
  53     }
  54 
  55     @Benchmark
  56     public boolean isUpperCase() {
  57         return Character.isUpperCase(codePoint);
  58     }
  59 
  60     @Benchmark
  61     public boolean isWhitespace() {
  62         return Character.isWhitespace(codePoint);
  63     }
  64 }