写了一个简单的键盘输入的类,如下: public class Scanner{ public static void main(String[] args){ int num1 =0; double num2 = 0.0; Scanner reader = new Scanner(System.in); System.out.print("请输入整数:"... 计蒜客 红绿蓝 幸运珠 publicclass红绿蓝 {staticStrings;staticintnum1;staticint...