How to replace occurance of numbers with single value?

I have below code

String str = "/admin/3138/misc";
boolean isNumbers = str.chars().anyMatch(Character::isDigit);
System.out.println(isNumbers);
if (isNumbers) {
    str = str.replaceAll("[0-9]", "%d");
    System.out.println("->" + str);
}

Which gives output:

admin/%d%d%d%d/misc

I need:

admin/%d/misc

So from string if numbers found just replace with %d one only, not every digit.

Answer

You need to change your regex to "[0-9]+"

if (isNumbers) {
    str = str.replaceAll("[0-9]+", "%d");
    System.out.println("->" + str);
}

Oracle’s doc: Quantifiers