How Can I Efficiently Pad Strings in Java?

Padding Strings Seamlessly in Java

Question:

Java lacks an explicit utility for string padding. How can this task be effectively accomplished?

Answer:

Introduced in Java 5, String.format() offers a comprehensive solution for padding strings:

Left-Padding:

public static String padLeft(String s, int n) {
    return String.format("%" + n + "s", s);
}

Right-Padding:

public static String padRight(String s, int n) {
    return String.format("%-" + n + "s", s);
}

---

Sample Usage:

public static void main(String args[]) throws Exception {
    System.out.println(padRight("Howto", 20) + "*");
    System.out.println(padLeft("Howto", 20) + "*");
}

Output:

Howto               *
               Howto*

The above is the detailed content of How Can I Efficiently Pad Strings in Java?. For more information, please follow other related articles on the PHP Chinese website!