摘要：
Public class Area { public static void main(String[] args) { double radius; double area; double PI=3.14159; double circle; radius =5.5; circle=2 * PI 阅读全文
摘要：
public class JavaJava{ public static void main(String[] args){ System.out.println(" J A V V A"); System.out.println(" J A A V V A A"); System.out.prin 阅读全文