CODEWITHSUNDEEP
javastring-formatting
midhunhk
midhunhk

Reputation: 5554

Can Java String format be used here

I have a situation in which I need to display a string with some spaces in the UI. This is for better readability.

For example if my data is "1234567890", I want to display it as "123 456 7890". I was wondering if this can be done using Java's String format methods?

Upvotes: 2

Views: 668

Answers (4)

Nate
Nate

Reputation: 1921

I'd do it with replaceAll.

String test = "1112223333";
System.out.println(test.replaceAll("(.{3})(.{3})(.{4})", "$1 $2 $3"));

This uses the regular expression (.{3})(.{3})(.{4}) the .{x} matches anything. the {x} is the number of times. I surround it in parenthesis (.{3}) to capture the string that matches in $1, $2 and $3.

So $1 = "111", $2 = "222" and $3 = "3333"

Upvotes: 1

Bhavik Shah
Bhavik Shah

Reputation: 5183

yes you can do it with String.format() First you can split the string in an array to have

a[0]="123"

a[1]="456"

a[2]="7890"

then use the following

String.format("%1$3s %2$3s %3$3s",a );

Upvotes: 0

John Howard
John Howard

Reputation: 64125

It looks like you are trying to format a phone number? You could use DecimalFormat, define the message format and make a String[] with sub strings of the original string.

Upvotes: 0

Marvin Effing
Marvin Effing

Reputation: 3011

No, you'd have to implement your own code. See here for the String API.

Upvotes: 1

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