.. | ||
A3.c | ||
A3.java | ||
README.md |
Steps to run this code
These are the steps to run code for Assignment-A3.
Important
Tested on Linux and Windows.
Prerequisites
- open-jdk (version 11 or higher)
- gcc
- Set open-jdk and gcc as environment variables using bin folder in path (For Windows Users only)
- Common sense
Steps For Linux
- Compile
A3.java
:
javac A3.java
- Generate header file:
javac -h . A3.java
- Compile C code:
gcc -shared -o libA3.so -fPIC -I"$JAVA_HOME/include" -I"$JAVA_HOME/include/linux" A3.c
Note
If you get an error saying "fatal error: jni.h: No such file or directory", this might be because you haven't set
$JAVA_HOME
environment variable. Usually JVM stuff is in/usr/lib/jvm/java-<version>-openjdk-amd64
. To setJAVA_HOME
environment variable, run:export $JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
(for version 17, adjust for your version accordingly.)
- Run program:
java -Djava.library.path=. A3
Steps For Windows
- Compile
A3.java
:
javac A3.java
- Generate header file:
javac -h . A3.java
- Set
JAVA_HOME
to the path of your jdk file location:
Note that this is my file location for jdk. It may differ for you.
set JAVA_HOME=C:\Program Files\openjdk-23.0.1_windows-x64_bin\jdk-23.0.1
- Compile C code:
gcc -shared -o A3.dll -fPIC -I"%JAVA_HOME%\include" -I"%JAVA_HOME%\include\win32" A3.c
- Run program:
java -Djava.library.path=. A3