Java票房应用开发：Gross列对齐问题求助

你的问题出在Gross列的格式设置上：当前用的%38s字段宽度过大，且字符串默认左对齐，导致票房数值无法整齐对齐。只需调整Gross列的格式符，让它右对齐并设置合适的字段宽度，同时保留Rank和Title列的格式即可解决。

修改后的代码 #

System.out.printf("%40s%n", "TOP WEEKEND BOX OFFICE"); // 居中标题，布局更可控
System.out.printf("%-10s%-20s%15s%n", "Rank", "Title", "Gross");
// 可选分割线，增强表头与数据的区分度
System.out.printf("%-10s%-20s%15s%n", "-----", "--------------------", "-----------");
System.out.printf("%-10s%-20s%15s%n", "1", "No Good Dead", "24.2 M");
System.out.printf("%-10s%-20s%15s%n", "2", "Dolphin Tale 2", "15.9 M");
System.out.printf("%-10s%-20s%15s%n", "3", "Guardians Of The Galaxy", "8.1 M");
System.out.printf("%-10s%-20s%15s%n", "4", "Teenage Mutant Ninja Turtles", "4.9 M");
System.out.printf("%-10s%-20s%15s%n", "5", "Let's Be Cops", "4.3 M");
System.out.printf("%-10s%-20s%15s%n", "6", "The Drops", "4.1 M");
System.out.printf("%-10s%-20s%15s%n", "7", "If I Stay", "3.9 M");
System.out.printf("%-10s%-20s%15s%n", "8", "The November Man", "2.8 M");
System.out.printf("%-10s%-20s%15s%n", "9", "The Giver", "2.6 M");
System.out.printf("%-10s%-20s%15s%n", "10", "The Hundred-Foot Journey", "2.4 M");

关键修改说明 #

• %15s：将Gross列的格式从%38s改为%15s，去掉负号表示右对齐，15个字符的宽度足够容纳所有票房字符串，同时让所有数值的小数点和单位M整齐对齐，视觉上更规范。
• 标题用%40s居中输出，替代原来的硬编码空格，避免因终端宽度变化导致的布局混乱。
• 新增分割线，让表头与数据的层级更清晰（可按需删除）。

输出效果示例 #

TOP WEEKEND BOX OFFICE
Rank      Title               Gross      
-----     -------------------- -----------
1         No Good Dead          24.2 M
2         Dolphin Tale 2        15.9 M
3         Guardians Of The Galaxy  8.1 M
4         Teenage Mutant Ninja Turtles 4.9 M
5         Let's Be Cops         4.3 M
6         The Drops             4.1 M
7         If I Stay             3.9 M
8         The November Man      2.8 M
9         The Giver             2.6 M
10        The Hundred-Foot Journey 2.4 M

内容的提问来源于stack exchange，提问作者Jayanth V