android5.0 compiling

android5.0 compilation requires a jdk1.7 version, you may need to maintain two versions of JDK in the future, please refer to:

Online installation openjdk1.7

sudo apt-get install Openjdk-7-jre openjdk-7-jdk

Offline Bin package installation requires manual addition of configuration options

sudo update-alternatives--install/usr/bin/java Java/usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java 50

Switch JDK version

sudo update-alternatives--config java

Toggle Javac Version

sudo update-alternatives--config javac

Note: If you only see partial JDK options, you need to add the. jinfo file yourself and register with Update-alternatives--install

Dynamic registration Java_home

java_home=$ (readlink-f/usr/bin/java | sed "S:bin/java::")

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By the way, the role of Javac and Java

Javac compiling Java files into class files
Java executes the class file.

Javac:java--->class
Java: Run class

android5.0 compiling