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1   /*
2    * Copyright (c) 2003, Henri Yandell
3    * All rights reserved.
4    * 
5    * Redistribution and use in source and binary forms, with or 
6    * without modification, are permitted provided that the 
7    * following conditions are met:
8    * 
9    * + Redistributions of source code must retain the above copyright notice, 
10   *   this list of conditions and the following disclaimer.
11   * 
12   * + Redistributions in binary form must reproduce the above copyright notice, 
13   *   this list of conditions and the following disclaimer in the documentation 
14   *   and/or other materials provided with the distribution.
15   * 
16   * + Neither the name of Genjava-Core nor the names of its contributors 
17   *   may be used to endorse or promote products derived from this software 
18   *   without specific prior written permission.
19   * 
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
23   * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
30   * POSSIBILITY OF SUCH DAMAGE.
31   */
32  package com.generationjava.random;
33  
34  public class RandomNumber implements RandomMaker {
35  
36      public RandomNumber() {
37      }
38  
39      static public int randomInt() {
40          return randomInt(Integer.MAX_VALUE);
41      }
42  
43      static public double randomDouble() {
44          return randomDouble(Double.MAX_VALUE);
45      }
46  
47      static public short randomShort() {
48          return randomShort(Short.MAX_VALUE);
49      }
50  
51      static public byte randomByte() {
52          return randomByte(Byte.MAX_VALUE);
53      }
54  
55      static public long randomLong() {
56          return randomLong(Long.MAX_VALUE);
57      }
58  
59      static public float randomFloat() {
60          return randomFloat(Float.MAX_VALUE);
61      }
62  
63      static public int randomInt(int range) {
64          return (int)(range*Math.random());
65      }
66  
67      static public double randomDouble(double range) {
68          return range*Math.random();
69      }
70  
71      static public short randomShort(short range) {
72          return (short)(range*Math.random());
73      }
74  
75      static public byte randomByte(byte range) {
76          return (byte)(range*Math.random());
77      }
78  
79      static public long randomLong(long range) {
80          return (long)(range*Math.random());
81      }
82  
83      static public float randomFloat(float range) {
84          return (float)(range*Math.random());
85      }
86  
87      public Object makeInstance(Class clss) {
88          if(clss == Integer.class) {
89              return new Integer(randomInt());
90          }
91          if(clss == Long.class) {
92              return new Long(randomLong());
93          }
94          if(clss == Float.class) {
95              return new Float(randomFloat());
96          }
97          if(clss == Double.class) {
98              return new Double(randomDouble());
99          }
100         if(clss == Short.class) {
101             return new Short(randomShort());
102         }
103         if(clss == Byte.class) {
104             return new Byte(randomByte());
105         }
106         if(clss == Number.class) {
107             return new Integer(randomInt());
108         }
109         if(clss == Integer.TYPE) {
110             return new Integer(randomInt());
111         }
112         if(clss == Long.TYPE) {
113             return new Long(randomLong());
114         }
115         if(clss == Float.TYPE) {
116             return new Float(randomFloat());
117         }
118         if(clss == Double.TYPE) {
119             return new Double(randomDouble());
120         }
121         if(clss == Short.TYPE) {
122             return new Short(randomShort());
123         }
124         if(clss == Byte.TYPE) {
125             return new Byte(randomByte());
126         }
127         return null;
128     }
129 
130 }