From 26206c058e0b1732e041867473cb04060161b02b Mon Sep 17 00:00:00 2001
From: duandazhi <ab601026460@163.com>
Date: Wed, 8 Jun 2022 15:46:17 +0800
Subject: [PATCH] =?UTF-8?q?JavaInfo=20=E6=96=B0=E5=A2=9E=EF=BC=9AgetVersio?=
 =?UTF-8?q?nIntSimple=20=E8=8E=B7=E5=8F=96=E7=AE=80=E5=8C=96=E7=89=88?=
 =?UTF-8?q?=E7=89=88=E6=9C=AC=EF=BC=881.8=20=3D>8,=201.7-->7,=2017->17?=
 =?UTF-8?q?=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../cn/hutool/extra/management/JavaInfo.java  | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/hutool-extra/src/main/java/cn/hutool/extra/management/JavaInfo.java b/hutool-extra/src/main/java/cn/hutool/extra/management/JavaInfo.java
index d0bf2c5ad..a6198e2e1 100644
--- a/hutool-extra/src/main/java/cn/hutool/extra/management/JavaInfo.java
+++ b/hutool-extra/src/main/java/cn/hutool/extra/management/JavaInfo.java
@@ -88,6 +88,30 @@ public class JavaInfo implements Serializable {
 		return JAVA_VERSION_INT;
 	}
 
+	/**
+	 * 返回1位整型的java版本，（取自系统属性：{@code java.version}）如：7、8、11、15、17、18，返回1位，java10及其之后的版本返回值为2位
+	 * <ul>
+	 *     <li>JDK 1.7.0_80：{@code 7}</li>
+	 *     <li>JDK 1.8.0_211：{@code 8}</li>
+	 *     <li>JDK 11.0.2：{@code 11}</li>
+	 *     <li>JDK 13.0.11：{@code 13}</li>
+	 *     <li>JDK 15.0.7：{@code 15}</li>
+	 *     <li>JDK 17.0.3：{@code 17}</li>
+	 *     <li>JDK 18.0.1.1：{@code 18}</li>
+	 * </ul>
+	 * @since 6.0.1
+	 * @author dazer
+	 */
+	public final int getVersionIntSimple() {
+		if (JAVA_VERSION == null) {
+			return 0;
+		}
+		if (JAVA_VERSION.startsWith("1.")) {
+			return Integer.parseInt(JAVA_VERSION.split("\\.")[1]);
+		}
+		return Integer.parseInt(JAVA_VERSION.split("\\.")[0]);
+	}
+
 	/**
 	 * 取得当前Java impl.的版本的{@code float}值。
 	 *