3. Selection Statements - if/else, switch

if, with optional else: if( condition) some_statement; else some_other_statement;

statement can be one statement or { multiple statements in braces }

  if( a < b)	  if( a < b)	    if( a < b)		if( a < b)
    ++count;	  {		      ++count1;		{
		    ++count;	    else		  ++count1;
		    c = a;	      --count2;		  c = a;
		  }				        }
							else
							{
							  --count2;
							  c = b;
							}

  if( a < b) { ++count1; c = a; } else { --count2; c = b; }

// conditional operator ?:
//
  c = (a < b) ? a : b;

  same as:  if( a < b) c = a; else c = b;

if/else can be used in nested form; for an integer decision variable, use switch statement:

  if( code == 10)		switch( code)
    statement1;			{
  else if( code == 11)		  case 10: statement1; break;
    statement2;			  case 11: statement2; break;
  else if( code == 13)		  case 13: statement3; break;
    statement3;			  default: statement4; break;
  else				}
    statement4;

Practice!