How can we use java String format in Scala

Question

I am using .format method to format a string. How can I do it in Scala?

Answer 1

val placeholderString = "Hello %s, isn't %s cool?"
val formattedString = placeholderString.format("Ivan", "Scala")

Answer 2

// we can specify the # of decimals we want to show for a floating point:
String result = String.format("10 / 3 = %.2f", 10.0 / 3.0);
// result now equals  "10 / 3 = 3.33"

// we can add commas to long numbers:
result = String.format("Today we processed %,d transactions.", 1000000);
// result now equals  "Today we processed 1,000,000 transactions."

Answer 3

String aString = "world";
int aInt = 20;
String.format("Hello, %s on line %d",  aString, aInt );

Output will be:

Hello, world on line 20

String.format("Line:%2$d. Value:%1$s. Result: Hello %1$s at line %2$d", aString, aInt );

Output will be:

Line:20. Value:world. Result: Hello world at line 20