Question

**MEDAL + FAN**
I'm struggling in Java Programming. Could somebody break these down for me?

I don't understand the questions. (Also, this assignment doesn't weight on my grade. I just need to get the content down.)

Answer 1

I would say random int between 0 and 10, for the first question.

Answer 2

Question #3, I believe the answer to be "else".

Answer 3

Thanks. Can you help me with the others?
And could you maybe explain how you identify the answers to question 1 and 3? It's fine if you can't/don't want to.

Answer 4

@Ghyst

Answer 5

In Java most language specific questions can be answered by consulting the Java API documentation (easiest navigated by googleing). There's also lots of tutorials and examples on how most basic things work; like the switch statement.

Q1: http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html#random()
\[0 \le rand() < 1 \]
Q3: http://docs.oracle.com/javase/tutorial/java/nutsandbolts/switch.html
```
switch(val) {
case 1:
// Code here
break;
case 2:
// Other stuff here
break;
default:
// Default case
}
```

Answer 6

I think q1: int between 0 and 9 inclusive:
random is between 0 and 1 exclusive
multiplied by 10 and then the floor is taken (rounded down to nearest integer)

q2
x && !x
means
x and not x
so that is always false

q3
see http://www.dummies.com/how-to/content/switch-statements-in-java.html
shouldn't the anwer be 'default' which means 'else' indeed

q5
%f
see
http://alvinalexander.com/programming/printf-format-cheat-sheet

Answer 7

3. was ELSE
4. int k = y ? x : x / 2;