CODEWITHSUNDEEP
javaioprintwriter
gstackoverflow
gstackoverflow

Reputation: 37078

Formatting in PrintWriter

I am reading this tutorial: link

That get result I am trying to invoke this code:

public static void main(String[] args) throws java.lang.Exception
    {
        PrintWriter writer = new PrintWriter(System.out);

        writer.print(true);
        writer.print((int) 123);
        writer.print((float) 123.456);

        writer.printf(Locale.UK, "Text + data: %1$", 123); //cause of exception

        writer.close();
    }

I am get exception:java.util.UnknownFormatConversionException: Conversion = '1'

Is it my mistake or tutorial author?

Upvotes: 0

Views: 721

Answers (1)

nbz
nbz

Reputation: 3938

Have a look at the way the string is formatted - http://docs.oracle.com/javase/7/docs/api/java/util/Formatter.html#syntax

It seems that 1$ indicates which argument but you still need a conversion after that - %1$d

Upvotes: 3

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