• Up to now, sequential control
• For example 
• Need control to express more interesting situations. Why? Examples from real-world:
• (At the grocery) If this line is too long, then I'll go another line, else I'll stay in this line.
• (Driving) If there is traffic on Maple St., then take Grove Road.
• (TV) If there is a good show on channel 10, then watch it, else try another channel.
• Flow charts used to be used to express this idea. E.g., 
• We won't use flowchats in this class, but useful from time to time.

Should be able to identify conditional part, true part, else part. No semi colon after condition. After true part is executed, next statement executed is print statement. Or after false part is executed, next statement executed is print statement. Also note indenting!

if (x > y)           if (yanksScore > rangersScore)
  max = x;               yanksWin += 1;
else                 else
  max = y;               rangersWin += 1;
print (max);         print (max);

From book, condensed Employee example. Students are advised to go through the book example! Recall employees have an hourly rate. Get paid time and half for over 40 hours.

class Employee {
  int rate;
  String name;
  public Employee (String name, int rate) {
    // note use of "this"
    this.name = name;
    this.rate = rate;
  }

  public int calcPay (int hours) {
    int pay, otPay;  // local variables
    if (hours <= 40) {
      pay = rate * hours;
    }
    else {  // note - use of brackets 
      pay = rate * 40;
      otPay = (hours - 40) * (rate + rate/2);
      pay += otPay;
    }
  }

  public String describe () {
    // note - similar to what is needed in assignment
    return name + " RATE: " + rate;
  }

• if-then-else (note- no "then" keyword)

         if (condition)
            statement;
         else
            statement;

• if-then (note- no "then" keyword)

         if (condition)
            statement;

• >
• <
• >=
• <=
• !=
• == (be careful! (a = 1) vs (a == 1)