摘要：
public class world { public static void main(String[] args) { double p=3.14,i=5.50; System.out.println(" 圆的面积："+ p*i*i+ "cm2"); System.out.println(" 圆 阅读全文
摘要：
public class aaa{ 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.println 阅读全文