Formating String using String Class

public class FormatString

{

public static void main(String [] arg)

{

Object ob[] = {"prabir",27};

st = String.format("My name is %s, I am %d years old", ob);

System.out.println(st);

st = String.format("The value of PI is:%f", Math.PI);

System.out.println(st);

//specify no. of decemals

st = String.format("The value of PI is:%.2f", Math.PI);

System.out.println(st);

}

}

Here

• s expecting string value.
• d expecting numeric value without decimal.
• f expecting float value.
• .2 specify no of decimal places.

Output:

The value of PI is: 3.141593

The value of PI is: 3.14