摘要： class A{void f() {System.out.println("I am A");}}class B{}public class Hello{public static void main(String arg[]){System.out.println("你好，很高兴学习Java");A a=new A();a.f();}}public class Tom{int leg;String head;void cry(String s){System.out.println(s);}}class Example{public static vo 阅读全文