ENSC 104: DIGITAL COMPUTER PROGRAMMING

IF STATEMENT

• Decision Making
  • Equality Operators

    • if ( x == y )     Is x equal to y?
                
                    Ex:
                       if ( x == y )
                          cout << "X is EQUAL to Y\n";
              
                

    • if ( x != y )     Is x not equal to y?
                  
                    Ex:
                       if ( x != y )
                          cout << "X is EQUAL to Y\n";
              
                

  • Relational Operators

    • if ( x > y )      Is x greater than y?
                 
                    Ex:
                       if ( x > y )
                          cout << "X is GREATER THAN Y\n";
              
               

    • if ( x < y )      Is x less than y?
                  
                    Ex:
                       if ( x < y )
                          cout << "X is LESS THAN Y\n";
              
              

    • if ( x >= y )     Is x greater than or equal to y?
                 
                    Ex:
                       if ( x >= y )
                          cout << "X is GREATER THAN OR EQUAL to Y\n";
              
               

    • if ( x <= y )     Is x less than or equal to y?
                 
                    Ex:
                       if ( x <= y )
                          cout << "X is LESS THAN OR EQUAL to Y\n";
              
               

• Program 1.8a Use of equality and relational operators in comparing two integers.
• Program 1.7c: Confusing = with ==