摘要：import java.util.Scanner; public class TingGeGe{public static void main(String[] args){long l=123456789012345l;System.out.print("长整数的的值是："+l+"\n"); fl 阅读全文

摘要：1.import java.util.Scanner; public class test { public static void main(String[] args) { Scanner Hy=new Scanner(System.in); double x1,x2,y1,y2; System 阅读全文

摘要：1. 2. public class AverageSpeed{ public static void main(String[]args){ double speedkm =60/(45.5/14); double speedm = speedkm /1.6; system.out.println 阅读全文