NumberUtil 添加一些数字常量 fix #693

src/main/java/com/feilong/core/lang/NumberUtil.java

@@ -25,6 +25,7 @@
 import java.math.RoundingMode;
 
 import org.apache.commons.lang3.Validate;
+import org.apache.commons.lang3.math.NumberUtils;
 
 import com.feilong.core.NumberPattern;
 import com.feilong.core.text.NumberFormatUtil;
@@ -169,6 +170,117 @@ private NumberUtil(){
 
     //---------------------------------------------------------------
 
+    /**
+     * 一,<code>{@value}</code>.
+     * 
+     * @since 1.10.7
+     * @see BigDecimal#ONE
+     * @see NumberUtils#INTEGER_ONE
+     */
+    public static final int  ONE              = 1;
+
+    /**
+     * 十,<code>{@value}</code>.
+     * 
+     * @since 1.10.7
+     */
+    public static final int  TEN              = 10;
+
+    /**
+     * 百,<code>{@value}</code>.
+     * 
+     * @since 1.10.7
+     */
+    public static final int  HUNDRED          = 100;
+
+    /**
+     * 千,<code>{@value}</code>.
+     * 
+     * @since 1.10.7
+     */
+    public static final int  THOUSAND         = 1000;
+
+    //---------------------------------------------------------------
+    /**
+     * 万,<code>{@value}</code>.
+     * 
+     * @since 1.10.7
+     */
+    public static final int  TEN_THOUSAND     = 1_0000;
+
+    /**
+     * 十万,<code>{@value}</code>.
+     * 
+     * @since 1.10.7
+     */
+    public static final int  HUNDRED_THOUSAND = 10 * TEN_THOUSAND;
+
+    /**
+     * 百万,<code>{@value}</code>.
+     * 
+     * @since 1.10.7
+     */
+    public static final int  MILLION          = 10 * HUNDRED_THOUSAND;
+
+    /**
+     * 千万,<code>{@value}</code>.
+     * 
+     * @since 1.10.7
+     */
+    public static final int  TEN_MILLION      = 10 * MILLION;
+
+    //---------------------------------------------------------------
+
+    /**
+     * 亿, <code>{@value}</code>.
+     * 
+     * <h3>说明:</h3>
+     * <blockquote>
+     * <ol>
+     * <li>
+     * {@link Integer#MAX_VALUE}:21_4748_3647 ,21亿, 注意使用的时候,超过最大值使用long来计算
+     * </li>
+     * </ol>
+     * </blockquote>
+     * 
+     * @since 1.10.7
+     */
+    public static final int  HUNDRED_MILLION  = 10 * TEN_MILLION;
+
+    /**
+     * 十亿, <code>{@value}</code>.
+     * 
+     * <h3>说明:</h3>
+     * <blockquote>
+     * <ol>
+     * <li>
+     * {@link Integer#MAX_VALUE}:21_4748_3647 ,21亿, 注意使用的时候,超过最大值使用long来计算
+     * </li>
+     * </ol>
+     * </blockquote>
+     * 
+     * @since 1.10.7
+     */
+    public static final int  BILLION          = 10 * HUNDRED_MILLION;
+
+    /**
+     * 百亿, <code>{@value}</code>.
+     * 
+     * <h3>说明:</h3>
+     * <blockquote>
+     * <ol>
+     * <li>
+     * {@link Integer#MAX_VALUE}:21_4748_3647 ,21亿, 注意使用的时候,超过最大值使用long来计算
+     * </li>
+     * </ol>
+     * </blockquote>
+     * 
+     * @since 1.10.7
+     */
+    public static final long TEN_BILLION      = (long) (BILLION) * 10;
+
+    //---------------------------------------------------------------
+
     /**
      * 判断第1个数字数字值 <code>one</code> 是不是{@code  > } (大于) 第2个数字数字值 <code>two</code>.
      * 

src/test/java/com/feilong/core/lang/numberutiltest/FeiLongNumberUtilSuiteTests.java

@@ -26,6 +26,8 @@
  */
 @RunWith(Suite.class)
 @SuiteClasses({
+                NumberUtilTest.class,
+
                 SetScaleTest.class,
                 SetScaleParameterizedTest.class,
                 SetScaleRoundingModeParameterizedTest.class,

src/test/java/com/feilong/core/lang/numberutiltest/NumberUtilTest.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2008 feilong
+ *
+ * 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.
+ */
+package com.feilong.core.lang.numberutiltest;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import com.feilong.core.lang.NumberUtil;
+
+/**
+ */
+public class NumberUtilTest{
+
+    @Test
+    public void testIsEqualsTestNull1(){
+        assertEquals(1, NumberUtil.ONE);
+        assertEquals(10, NumberUtil.TEN);
+        assertEquals(100, NumberUtil.HUNDRED);
+        assertEquals(1000, NumberUtil.THOUSAND);
+
+        assertEquals(1_0000, NumberUtil.TEN_THOUSAND);
+        assertEquals(10_0000, NumberUtil.HUNDRED_THOUSAND);
+        assertEquals(100_0000, NumberUtil.MILLION);
+        assertEquals(1000_0000, NumberUtil.TEN_MILLION);
+
+        assertEquals(1_0000_0000, NumberUtil.HUNDRED_MILLION);
+        assertEquals(10_0000_0000, NumberUtil.BILLION);
+        assertEquals(100_0000_0000L, NumberUtil.TEN_BILLION);
+    }
+
+}