Java "Hello World" without keyword "class"

solution

# Linux / Mac
echo 'java.lang.System.out.println("Hello World")' | java -cp ${JAVA_HOME}/lib/tools.jar com.sun.tools.script.shell.Main

# Windows
echo java.lang.System.out.println("Hello World") | java -cp %JAVA_HOME%/lib/tools.jar com.sun.tools.script.shell.Main

Nice solution!

This one is more readable though:

public interface HelloWorldInterface {
public static void main(String[] args) {
System.out.println("HelloWorldInterface World");
}
}

Btw. you don't need the "public" modifiert in interfaces so you can make it even shorter ;-)

@yfain Sure your interface solution is more readable. Mine was more to show a "more different" solution. ;-)