parcel9.java

java的容器应用

//: Parcel9.java
// Using "instance initialization" to perform construction on an anonymous inner class

public class Parcel9 {
	public Destination dest(final String dest, final float price) {
		return new Destination() {
			private int cost;
			//	Instance initialization for each object:
			{
				cost = Math.round(price);
				if ( cost > 100 )
					System.out.println("Over budget!");
			}
			private String label = dest;
			public String readLabel() { return label; }
		};
	}

	public static void main(String[] args) {
		Parcel9 p = new Parcel9();
		Destination d = p.dest("Tanzania", 101.395F);
	}
}