qt androind

http://blog.csdn.net/foxbryant/article/details/51813685

sudo gedit /etc/profile

或者

gedit ~/.bashrc

#set java environment
export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_25  
export JRE_HOME=${JAVA_HOME}/jre  
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib  
export PATH=${JAVA_HOME}/bin:$PATH

保存退出，輸入如下命令使之當即生效。

配置默認JDK：

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.8.0_25/bin/java 300  
sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.8.0_25/bin/javac 300  
//後面兩項能夠不配置  
sudo update-alternatives --install /usr/bin/javah javah /usr/lib/jvm/jdk1.8.0_25/bin/javah 300  
sudo update-alternatives --install /usr/bin/jar jar /usr/lib/jvm/jdk1.8.0_25/bin/jar 300  
//版本切換命令 

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

測試

java -version
javac -version