Source of AssertTest.java


  1: // Fig. 13.9: AssertTest.java
  2: // Uses assert to check that an absolute value is positive
  3: import java.util.Scanner;
  4: 
  5: public class AssertTest
  6: {
  7:    public static void main( String args[] )
  8:    {
  9:       Scanner input = new Scanner( System.in );
 10:       
 11:       System.out.print( "Enter a number between 0 and 10: " );
 12:       int number = input.nextInt();
 13:       
 14:       // assert that the absolute value is >= 0
 15:       assert ( number >= 0 && number <= 10 ) : "bad number: " + number;
 16:       
 17:       System.out.printf( "You entered %d\n", number );
 18:    } // end main
 19: } // end class AssertTest
 20: 
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