Hi. Is there any way to write code to write out something like this in the Command Prompt?
|Name|Age |
| John|15|
With those two rows perfectly aligned? If so, how can I do this? Also, it'd be nice if for whatever name length that it be right-aligned.
Message was edited by:
ApRiX
Message was edited by:
ApRiX
Got bored and wrote this:public class TableFormat {
public static void main(String[] args) {
System.out.printf("|%s|%s|%n", cen("Name", 11), cen("Age", 6));
System.out.printf("|%11s|%6d|%n", "John", 15);
System.out.printf("|%11s|%6d|%n", "Frederick", 101);
System.out.println("\nIt's common for strings to be left aligned...");
System.out.printf("|%-11s|%6d|%n", "John", 15);
System.out.printf("|%-11s|%6d|%n", "Frederick", 101);
System.out.println("\nWith floating point numbers there's the dot");
System.out.println("to keep aligned...");
System.out.printf("|%s|%s|%s|%n",
cen("Name", 11), cen("Age", 6), cen("Height", 8));
System.out.printf("|%-11s|%6d|%8.2f|%n", "John", 15, 1.8);
System.out.printf("|%-11s|%6d|%8.2f|%n", "Frederick", 101, 1.948);
}
static String cen(String str, int width) {
StringBuilder buf = new StringBuilder();
for(int i = 0; i < (width - str.length() + 1) / 2; i++) {
buf.append(' ');
}
buf.append(str);
for(int i = 0; i < (width - str.length()) / 2; i++) {
buf.append(' ');
}
return buf.toString();
}
}
The format strings are a bit cryptic to start with - but just follow the documentation and use the features you need. The effort can pay off because these strings are used more or less the same way in various languages. (The string literal "|%11s|%6d|%n" doesn't need to be written each time, it can be made a variable.)
