Simple way to repeat a string

Question

I\'m looking for a simple commons method or operator that allows me to repeat some string n times. I know I could write this using a for loop, but I wish to avoid f

Answer 1

If you are using Java <= 7, this is as "concise" as it gets:

// create a string made up of n copies of string s
String.format("%0" + n + "d", 0).replace("0", s);

In Java 8 and above there is a more readable way:

// create a string made up of n copies of string s
String.join("", Collections.nCopies(n, s));

Finally, for Java 11 and above, there is a new repeat​(int count) method specifically for this(link)

"abc".repeat(12);

Alternatively, if your project uses java libraries there are more options.

For Apache Commons:

StringUtils.repeat("abc", 12);

For Google Guava:

Strings.repeat("abc", 12);