staticinitialization.java

Java例程

//: StaticInitialization.java
// Specifying initial values in a
// class definition.
class Bowl {
	Bowl(int marker) {
		System.out.println("Bowl(" + marker + ")");
	}
	
	void f(int marker) {
		System.out.println("f(" + marker + ")");
	}
}

class Table {
	static Bowl b1 = new Bowl(1);

	Table() {
		System.out.println("Table()");
		b2.f(1);
	}
	
	void f2(int marker) {
		System.out.println("f2(" + marker + ")");
	}
	
	static Bowl b2 = new Bowl(2);
}

class Cupboard {
	Bowl b3 = new Bowl(3);
	static Bowl b4 = new Bowl(4);
	
	Cupboard() {
		System.out.println("Cupboard()");
		b4.f(2);
	}
	
	void f3(int marker) {
		System.out.println("f3(" + marker + ")");
	}

	static Bowl b5 = new Bowl(5);
}
	
public class StaticInitialization {
	public static void main(String[] args) {
		System.out.println(
			"Creating new Cupboard() in main");
		new Cupboard();
		System.out.println(
			"Creating new Cupboard() in main");
		new Cupboard();
		t2.f2(1);
		t3.f3(1);
	}
	
	static Table t2 = new Table();
	static Cupboard t3 = new Cupboard();
} ///:~