Java静态数据的初始化

//: initialization/StaticInitialization.java
// Specifying initial values in a class definition.

class Bowl{
    // 构造器
    Bowl(int marker){
        System.out.println("Bowl("+marker+")");
    }
    // 方法
    void f1(int marker){
        System.out.println("f1("+marker+")");
    }
}

class Table{
    // 静态域
    static Bowl bowl1 = new Bowl(1);
    // 构造器
    Table(){
        System.out.println("Table()");
        bowl2.f1(1);
    }
    // 方法
    void f2(int marker){
        System.out.println("f2("+marker+")");
    }
    // 静态域
    static Bowl bowl2 = new Bowl(2);
}

class Cupboard{
    // 非静态域
    Bowl bowl3 = new Bowl(3);
    // 静态域
    static Bowl bowl4 = new Bowl(4);
    // 构造器
    Cupboard(){
        System.out.println("Cupboard()");
        bowl4.f1(2);
    }
    // 方法
    void f3(int marker){
        System.out.println("f3("+marker+")");
    }
    // 构造器
    static Bowl bowl5 = 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();
        table.f2(1);
        cupboard.f3(1);
    }
    static Table table = new Table();
    static Cupboard cupboard = new Cupboard();
}

---------- Java ----------
Bowl(1)
Bowl(2)
Table()
f1(1)
Bowl(4)
Bowl(5)
Bowl(3)
Cupboard()
f1(2)
Creating new Cupboard() in main
Bowl(3)
Cupboard()
f1(2)
Creating new Cupboard() in main
Bowl(3)
Cupboard()
f1(2)
f2(1)
f3(1)

Output completed (0 sec consumed) - Normal Termination