Name: ____________________________________________________ Alpha: _____________________

1. [20Pts] What's wrong with the function disp() defined below?
```public class Foo
{
double x;
String s;
public static String disp()
{
return "[" + s + "," + x + "]";
}
}```
2. [60Pts] Given the following (partial) defintion of class Time
```public class Time
{
int hh, mm, ss;
public boolean equal(Time t) { ... }
public static boolean equal(Time t1, Time t2) { ... }
}```
Assume code in some other class Foo class defines A and B as: `Time A = new Time(), B = new Time();`
1. How would you call the first definition of equal to compare A and B (still from within Foo)?
2. How would you call the second definition of equal to compare A and B (still from within Foo)?
3. Give the definition for the first "equal":
```public boolean equal(Time t)
{

}```
4. Give the definition for the second "equal":
```public static boolean equal(Time t1, Time t2)
{

}```
3. [20Pts] Suppose I wanted to add a function to the Time class (above) to determine whether Time A comes before Time B. Give the complete method definition I would have to add to the Time class in order to be able to call the function like this:
`A.isBefore(B)`