How to install the gcj Java compiler on Debian 7.0 and compile a simple program.

Posted: August 10, 2013. At: 12:25 AM. This was 4 years ago. Post ID: 6102

This is how to compile a Java source file on Linux with gcj.

[email protected]:~/Documents$ gcj --main=HelloWorld HelloWorld.java

This is the source file that I am working with.

/*
 * My first Java program.
 *
 */
 
import java.util.Date;
 
public class HelloWorld {
 
	public static void main(String[] args) {
 
		System.out.printf("\"Hello, World\"\n");
		Date date = new Date();
 
		System.out.println("The date is: " + date.toString() + ".");
	}
 
}

And after I have compiled the program, I can run it by typing ./a.out and I will see the output.

homer@neo:~/Documents$ ./a.out 
"Hello, World"
The date is: Sat Aug 10 00:16:15 AEST 2013.

And this is how to install the gcj Java compiler on Debian 7.0.

sudo apt-get install gcj-4.6-jre
[email protected]:~$ sudo apt-get install gcj-4.6-jre
Reading package lists... Done
Building dependency tree       
Reading state information... Done
gcj-4.6-jre is already the newest version.
The following packages were automatically installed and are no longer required:
  libossp-uuid16 libpq5 postgresql-client-common postgresql-common timelimit
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 118 not upgraded.

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