如何在java txt文件中打印列 [英] how to print columns in java txt file

问题描述

我试图在一个.txt文件上打印多个数组

我不记得格式化命令做这个
我需要所有列对齐现在我有这个

  private static void makeFile（String [] name，String [] nickname，String [] capital，
 String [] flowers，String [] population）throws FileNotFoundException 
 {
 PrintWriter out =新的PrintWriter（out.txt）; （int i = 0; i <50; i ++）
 out.println（name [i] +\ t+昵称[i]）的
 
; 
 
 out.close（）; 
 
 
 
 $ b $ p 
 $ b $ p 
 $ b $ 
  
 
如何我解决它，所以他们都对齐，并有3个更多的列添加到这个如何让他们对齐，以及?? 
解决方案
您应该使用 String.format  like 
 字符串。格式（％ -  30s％s，名称[i]，昵称[i]）
  
 30是名字的最大长度。
 
I am trying to print multiple arrays on one .txt file having one array print then have another column crated and have another array print how do i format this to work??

I cant remember the formatting commands to do this 
I need all the columns to align right now i have this 
private static void makeFile(String[] name, String[] nickname, String[] capital, 
           String[] flowers, String[] population) throws FileNotFoundException 
{
    PrintWriter out = new PrintWriter ("out.txt");

    for (int i = 0; i< 50 ; i++)
         out.println( name[i] +" \t "+  nickname[i] );

    out.close();
}
This is what prints



How do i fix it so they are all aligned and there are 3 more columns to add to this how do i get them to align as well ??
解决方案
You should use String.format like
String.format("%-30s %s", name[i], nickname[i])
where 30 is maximum length of name.

                        
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