// A1 extended to Fri Noon.


//Review of Musician and Band classes.

Musician m1 = new Musician("Larry", 98);
m1.getName()
m1.getSalary()
Musician m2 = new Musician("Curly", 82);
Musician m3 = new Musician("Mo", 45);

//creating a band
Band b = new Band(m1, m2, m3);
b.getTotalSalary()
b.getMemberOne()
b.getMemberOne().getName()
b.getMemberOne().getSalary()


//We also discussed toString method
m1.toString()
b.toString()

//if you don't provide the toString() method, the default toString() method 
// (in Object class that returns the refrence in string format) is called

//let's add a toString method to Band and try again
Musician m1 = new Musician("Larry", 98);
Musician m2 = new Musician("Curly", 82);
Musician m3 = new Musician("Mo", 45);
Band b = new Band(m1, m2, m3);
b.toString()


//discussed ==  for objects
Musician m1 = new Musician("m1", 100)
Musician m2 = new Musician("m1", 100)
m1 == m2
//why false?

Musician m3;
m3 = m1
m1 == m3


//Similarly, for String equality
"hello" == "hello"
String s1, s2
s1 = "hello"
s2 = "hello"
s1 == s2

//why they are not equal?
// note when using == for objects, we are comparing their references
//  it evaluates to true only if both sides of == refer to the same object.

//here is to check the data equality of two Strings:
"hello".equals("hello")
s1.equals(s2)

//if you want a special data equality for your class you need to implement a methods for that
Musician m1 = new Musician("m1", 100)
Musician m2 = new Musician("m1", 100)
Musician m3 = new Musician("m1", 300)
m1 == m2
m1.isEqual(m2)
m1.isEqual(m3)

//exercise: what happens if we try Band b = new Band(m1, m1, m1)?
// what about b.getMemberOne()?  b.totalSalary()?