Question

I am learning Java in Eclipse IDE. I cannot figure out how to get the printf to work or to define it. I have checked and I am using the correct compiler for the Java I have which is 1.6. This is the error I am getting:

Syntax error on token ".", ; expected
The method printf(String, int) is undefined for the type Addition

The program:

// Fig 2.7: Addition.java
// Addition program that displays the sum of two numbers.
import java.util.Scanner; // program uses class Scanner

public class Addition
{
// main method begins execution of Java application
public static void main( String[] args )
{
    // create a Scanner to obtain input from the command window
    Scanner input = new Scanner( System.in );

    int number1; // first number to add
    int number2; // second number to add
    int sum; // sum of number1 and number2

    System.out.print( "Enter first integer: "); // prompt
    number1 = input.nextInt(); // read first number from user

    System.out.print( "Enter second integer: "); // prompt
    number2 = input.nextInt(); // read second number from user

    sum = number1 + number2; // add numbers, then store total in sum

    System out.println( "Sum is %d\n", sum ); // display sum        

} // end method main
} // end class Addition

I’ve tried the auto-fix from Eclipse but it will still give me the error on token “.”.

Answer 1

You’re missing a .:

System out.println( "Sum is %d\n", sum ); // display sum        

Should be:

System.out.println( "Sum is %d\n", sum ); // display sum