numbertest.java~

来自「SCJP认证考试资料」· JAVA~ 代码 · 共 12 行

public class NumberTest {
    public static void main(String[] args) {
	print(3.0);
    }
    private static void print(Number n) {
	System.out.println("Number"};
    }
    private static void print(Float n) {
	System.out.println("Float");
    }
}