在KALI LINUX中安裝JAVA JDK

1. 下載最新的JAVA JDK

jdk-8u91-linux-x64

2. 解壓縮文件並移動至/opt

tar -xzvf jdk-8u91-linux-x64.tar.gz
mv jdk1.8.0_91 /opt
cd /opt/jdk1.8.0_91

3. 設置環境變量

1）執行 gedit ~/.bashrc ， 並添加下列內容

# install JAVA JDK
export JAVA_HOME=/opt/jdk1.8.0_91
export CLASSPATH=.:${JAVA_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

2）執行 source ~/.bashrc

4. 安裝並注冊

執行：

update-alternatives --install /usr/bin/java java /opt/jdk1.8.0_91/bin/java 1
update-alternatives --install /usr/bin/javac javac /opt/jdk1.8.0_91/bin/javac 1
update-alternatives --set java /opt/jdk1.8.0_91/bin/java
update-alternatives --set javac /opt/jdk1.8.0_91/bin/javac

查看結果：

update-alternatives --config java
update-alternatives --config javac

5. 測試

java -version
#output 
java version "1.8.0_91"
Java(TM) SE Runtime Environment (build 1.8.0_91-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.91-b14, mixed mode)