What is this?
public class ABC {
public ABC() {
System.out.println("world");
}
static {
System.out.println("hello");
}
}
Will print: hello world
I don't really understand this, or what kind of method that static code is.
It's called a "static initialisation block".
It runs when the class is first loaded; only once.
For example, a constructor will run each time the class is instantiated; the static block only runs once, when it's first loaded statically by the VM/Class loader.
I think it's worth noting the static block will be run exactly once each time a classloader loads a class. This means if you have more than one classloader, the block can execute more than once.
