Daniel Lawson Chapter 5 Self Check 14-22 even

14.
a. true
b. true
c. false
d. true
e. true
f. false
g. false
h. true
i. true
j. true
k. true
l. false

16.
the else statement is redundant and will mess up the value that the method will return (Should be removed). For example with 16,
it will return that 8 is a factor of 16, making prime false, but when the for loop reaches a number like 9, it will set the
value of prime to true when it should be false.

18.
original:
public static boolean startsEndSame(String str){
    if(str.charAt(0) == str.charAt(str.length() - 1)){
        return true;
    }
    else{
        return false;
    }
}
improved:
public static boolean startsEndSame(String str){
    return(str.charAt(0) == str.charAt(str.length() - 1));
}

20.
mystery(3,3) = 3
mystery(5,3) = 1
mystery(2,6) = 2

22.
a. !b
b.  (x<+y) || (z<+y)
c. (x!=y) && (z>=x)
d. (x % 2 = 0) || !b
e. (x/2 !=13) && !b && (z*3!=96)
f. (z>=x) || (y>=z && y < x)