1 Running Nectar software

1.1 Java Runtime Environment & Development Kit

You should be already be able to compile and run Java executables using openJDK, but we prefer to install the sunJDK.

Download and install the last JDK' RPM from SUN. rq: The Java Development Kit (JDK) contain the Java Runtime Environment (JRE).

# chmod +x jdk-6u19-linux-i586-rpm.bin
# ./jdk-6u19-linux-i586-rpm.bin

rq:  # rpm --erase jdk-1.6.0_19-fcs         (will remove it)

You may want to make the SUN JDK the default one.

$ rpm -ql jdk-1.6.0_19-fcs | grep bin/javac    (the sun jdk)

$ which java
$ ls -l /usr/bin/java*           (link pointing to open jdk)
# cd /usr/bin
# rm -f java*                              (replacing links) 
# find /usr/java/jdk1.6.0_19/bin/java* -exec ln -s {} . \;

$ /etc/alternatives/java -version                  (testing)
$ java -version

1.2 Hello World

$ cat > hello.java
class HelloWorldApp {
    public static void main(String[] args) {
        System.out.println("Hello World!"); // Display the string.
    }
}
^D

$ javac hello.java 
$ java HelloWorldApp

1.3 Nectar application

double click on the nectar/dist/nectar.jar file.

$ cd nectar/dist
$ java -jar nectar.jar

2 Integrated development environment

Download and install the last JDK from SUN (like above).

# chmod +x jdk-6u19-linux-i586-rpm.bin
# ./jdk-6u19-linux-i586-rpm.bin

Download and install NETBEANS.
```
# yum install netbeans
```

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2016-02-15

Contents

1 Running Nectar software

1.1 Java Runtime Environment & Development Kit

1.2 Hello World

1.3 Nectar application

2 Integrated development environment