Question

我在java“CircleDemo”中编写了一个程序，它不可避免地会这样做：

System.out.printf("The circle's area \t   is \t %.2f \n", circle.getArea());
System.out.printf("The circle's diameter \t   is \t %.2f \n", circle.getDiameter());
System.out.printf("The circle's circumference is \t %.2f \n", circle.getCircumference());

在cmd.exe中，显示如下所示：

The circle's area          is    3.14 
The circle's diameter      is    2.00
The circle's circumference is    6.28

很好，干净的格式。

但是，Notepad ++的控制台（nppexec）会打印相同的程序：

The circle's area     is    3.14 
The circle's diameter      is    2.00
The circle's circumference is    6.28

您可以看到格式不同。现在，我玩了很长时间才找到导致这种情况的原因是“\ t”在cmd.exe和Notepad ++的nppexec中以不同方式打印标签。

如何编辑nppexec的“\ t”格式以打印“\ t”，与cmd.exe相同？

Answer 1

避免使用\t获取数组格式。我可能只是使用

System.out.printf("The circle's area          is %.2f %n", circle.getArea() );
System.out.printf("The circle's diameter      is %.2f %n", circle.getDiameter());
System.out.printf("The circle's circumference is %.2f %n", circle.getCircumference());

如果需要更多动态解决方案，可以使用

System.out.printf("The circle's %-13s is %.2f%n", "area", circle.getArea());

或者如果响应不需要始终以The circle's

开头

System.out.printf("%-26s is %.2f%n", "The circle's area",  circle.getArea());

DEMO

Answer 2

您可以尝试以下示例。在宽度之前使用' - '以确保左缩进。默认情况下，它们会缩进;这可能不适合你的目的。

    System.out.printf("%-30s %-5s $%.2f\n","The circle's area ", "is" ,circle.getArea());
    System.out.printf("%-30s %-5s $%.2f\n","The circle's diameter ", "is" ,circle.getDiameter());
    System.out.printf("%-30s %-5s $%.2f\n","The circle's circumference ", "is" ,circle.getCircumference());

来源：http://docs.oracle.com/javase/7/docs/api/java/util/Formatter.html#syntax

在记事本中的\ t间距++的nppexec

2 个答案: