java - Java 中的 printf() 结构

Question

我正在使用 printf 构建一个包含三列的表格，但遇到了一些麻烦。

我目前正在使用:

System.out.printf("%-10s %33s %5.2f\n", "New Price:", "$", newPrice);
System.out.printf("%-10s %28s %1.2f\n", "Depreciation Amount:", "$", -Dep1);
System.out.printf("%-10s %23s %3.2f\n", "Other Depreciation Amount:", "$", -Dep2);
System.out.printf("%-10s %21s %5.2f\n\n", "Current Market Value:", "$", curVal);
System.out.printf("%-10s %32s %6.2f\n\n", "Other Amount:", "$", otherAmount);

这给了我一个输出:

New Purchase Price:                                 $ 60000.00
Age Depreciation Amount:                            $ -18000.00
Distance Depreciation Amount:                       $ -9600.00
Estimated Current Market Value:                     $ 32400.00

Base Premium Amount:                                $ 1620.00

我不知道如何调整 printf 使其显示为:

New Purchase Price:                                 $  60000.00
Age Depreciation Amount:                            $ -18000.00
Distance Depreciation Amount:                       $  -9600.00
Estimated Current Market Value:                     $  32400.00

Base Premium Amount:                                $   1620.00

我如何实现这一目标？

干杯

Answer 1

方法如下:

System.out.printf("%-30s %2s %8.2f\n", "New Price:", "$", newPrice);
System.out.printf("%-30s %2s %8.2f\n", "Depreciation Amount:", "$",
            -Dep1);
System.out.printf("%-30s %2s %8.2f\n", "Other Depreciation Amount:",
            "$", -Dep2);
System.out.printf("%-30s %2s %8.2f\n\n", "Current Market Value:", "$",
            curVal);
System.out.printf("%-30s %2s %8.2f\n\n", "Other Amount:", "$",
            otherAmount);

1) 宽度是总宽度，包括句点和分数。

2)不要手动计算常量的宽度，计算机更擅长。

3)将来，发布与结果相对应的实际代码，而不是近似值。