Java Console printf() Method

The printf() method of Console class is used to write a formatted string to this console's output stream. This method used a specific format of string and arguments.

Syntax

Parameters

fmt: A format string as described in Format string syntax.

args: Arguments referenced by the format specifies in the format string.

Return value:

This method returns this console.

Exception:

IllegalFormatException: If a format string contains an illegal syntax.

Example 1

import java.io.*;
class Printf {

    public static void main(String[] args) throws IOException
    {
        int a = 12;
        int b = 45;    
        int c = a + b;
        System.out.printf("Sum of %d and %d is %d.", a,b, c);
            //Sum of 12 and 45 is 57.
        }
}

Output:

Sum of 12 and 45 is 57.

Example 2

import java.util.Scanner;
class Printf {
 public static void main(String[] args) 
    {
        int a;
        int b;    
        Scanner obj=new Scanner(System.in);

        System.out.println("Enter first value");
        a=obj.nextInt();
        System.out.println("Enter second value");
        b=obj.nextInt();
        int c = a + b;
        System.out.printf("First value  %d Second value  %d Addition is: %d.", a,b, c);
    
        }
   
    }

Output:

Enter first value
12
Enter second value
23
First value  12 Second value  23 Addition is: 35.

Example 3

import java.io.Console;
public class Main {
  public static void main(String[] args) throws Exception {
 Console obj = System.console();
  if (obj != null) {
      String fmt = "%1$4s %2$10s %3$10s%n";
 // format
      obj.printf(fmt, "cse", "program", "language");
     obj.printf(fmt, "-----", "-----", "-----");
      obj.printf(fmt, "PHP", "Java", "Python");
      obj.printf(fmt, "CSS", "Html", "JavaScript");
     }   }
}

Output:

 cse    program   language                                                                    -----      -----      -----PHP       Java     Python                                                                 
 CSS       Html JavaScript

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