java - 在 2 个表上打印 2 个标题

Question

大家早上好，

我被分配在java上显示一个双面 table (初学者)。我能够获取表格的主体，但在编码以打印表格标题时遇到问题。第一列应以“英里”作为标题，第二列应以“公里”作为标题。我如何打印它？

下面是我为表格输出所做的代码。

//This program will display 2 tables side by side
//With the use of for or while loop structure

import java.util.Scanner;
public class Lab5 
{
public static void main(String[] args) 
{
final double MILES_PER_KM = 1.61; // miles per km
double kilometers = MILES_PER_KM;



for (int miles = 1; miles <= 11; miles +=2)
{
double km = miles * MILES_PER_KM;
String s = String.format("%3d\t%3.2f", miles, miles*MILES_PER_KM);
System.out.println(s);
}


}//main

}//class

Answer 1

我只会使用 printf()和类似的东西，

final double MILES_PER_KM = 1.61; // miles per km
System.out.printf("%s\t%s%n", "Miles/hr", "Km/hr");
for (int miles = 1; miles <= 11; miles += 2) {
    double km = miles * MILES_PER_KM;
    System.out.printf("%3d\t\t%3.2f%n", miles, miles * MILES_PER_KM);
}