addition.java

Java大学基础教程V6前五章源码

// 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 Scanner to obtain input from 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

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

   } // end method main

} // end class Addition

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