diff --git a/ubuntu-jdk8.sh b/ubuntu-jdk8.sh
index 6ca0b8b..7852b51 100644
--- a/ubuntu-jdk8.sh
+++ b/ubuntu-jdk8.sh
@@ -1,3 +1,15 @@
+#!/bin/bash
+
 cd /usr/local
+
 wget https://mirrors.huaweicloud.com/java/jdk/8u202-b08/jdk-8u202-linux-x64.tar.gz
-tar -zvxf jdk-8u202-linux-x64.tar.gz
\ No newline at end of file
+
+tar -zvxf jdk-8u202-linux-x64.tar.gz
+
+echo "export JAVA_HOME=/usr/local/jdk1.8.0_202" | tee -a /etc/profile
+echo "export CLASSPATH=$:CLASSPATH:$JAVA_HOME/lib/" | tee -a /etc/profile
+echo "export PATH=$PATH:$JAVA_HOME/bin" | tee -a /etc/profile
+
+source /etc/profile
+
+java -version
\ No newline at end of file