public class MovieAudience { public static void main(String[] args) { // input (hard-coded)...
public class MovieAudience {
public static void main(String[] args) {
// input (hard-coded) Do not
change.
short[] agesOfAudience = { 39, 17,
67, 15, 56, 15, 92, 25, 62, 61, 79, 42, 85, 76, 58, 41, 22, 59, 83,
84, 72,
77, 31, 48, 44, 19, 43, 98, 96, 41, 64, 27, 60,
22, 6, 99, 67, 14, 31, 15, 97, 42, 87, 62, 79, 37, 46,
30, 97, 51, 98, 43, 40, 98, 55, 70, 22, 80, 62
};
// processing
// According to Wikipedia, the "key
demographic" used for television
// is 18 to 54.
// TODO: Implement a method that
will return the number of people
// between 18 and 54 inclusive,
found in any array passed in as an
// argument. Do not change the
method invocation.
int numKeyDemo =
countKeyDemographic(agesOfAudience);
// TODO: Implement a method that
will return the average of any
// array passed in as an argument.
Do not change the method invocation.
float avg =
average(agesOfAudience);
// output
// TODO: replace the two lines of
code below with a method named
// "displayOutput" that produces
the same result
System.out.println("The number in
the key demo is: " + numKeyDemo);
System.out.println("The average age
is: " + avg);
}
}
Homework Answers
public class MovieAudience {
public static void main(String[] args) {
// input (hard-coded) Do not
change.
short[] agesOfAudience = { 39, 17,
67, 15, 56, 15, 92, 25, 62, 61, 79, 42, 85, 76, 58, 41, 22, 59, 83,
84, 72,
77, 31, 48, 44, 19, 43, 98, 96, 41, 64, 27, 60,
22, 6, 99, 67, 14, 31, 15, 97, 42, 87, 62, 79, 37, 46,
30, 97, 51, 98, 43, 40, 98, 55, 70, 22, 80, 62
};
// processing
// According to Wikipedia, the "key
demographic" used for television
// is 18 to 54.
// TODO: Implement a method that
will return the number of people
// between 18 and 54 inclusive,
found in any array passed in as an
// argument. Do not change the
method invocation.
int numKeyDemo =
countKeyDemographic(agesOfAudience);
// TODO: Implement a method that
will return the average of any
// array passed in as an argument.
Do not change the method invocation.
float avg =
average(agesOfAudience);
// output
// TODO: replace the two lines of
code below with a method named
// "displayOutput" that produces
the same result
System.out.println("The number in
the key demo is: " + numKeyDemo);
System.out.println("The average age
is: " + avg);
}
private static float average(short[] arr) {
float sum = 0;
//iterating through the elementsand
adding to sum
for (short s : arr)
sum += s;
//finding the average
return sum / arr.length;
}
private static int countKeyDemographic(short[] arr)
{
int count = 0;
//iterating through the elements
and adding to counting if it is between 18-54
for (short s : arr)
if (s >= 18
&& s <= 54)
count++;
return count;
}
}
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public class MovieAudience {
public static void main(String[] args) {
// input (hard-coded)...
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——————
ListArrayMain.java
——————-
public class ListArrayMain {
public static void main (String[] args) {
ListArray L1 = new ListArray(); // constructs the list L1
L1.InsertBegin(2);
L1.InsertBegin(3);
L1.InsertBegin(7);
L1.InsertBegin(15);
L1.InsertBegin(5);
L1.InsertEnd(666);
L1.InsertAfter(1000,7);
// Now, let's print out the array to verify the insertions
worked.
System.out.println("The items in the list are:");
for (int i = 0; i<= L1.lastCell; i++) {
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Collections.addAll(list1, 1, 3, 5, 5 );
ArrayList<Integer> list2 = new
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ArrayList<Integer> result1= uniqueUnion(list1,list2);
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public class Lab6d {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
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}
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public class ShiftNumbers {
public static void main(String[] args) {
// TODO: Declare matrix shell size
// TODO: Create first row
// TODO: Generate remaining rows
// TODO: Display matrix
}
/**
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help
——————
ListArrayMain.java
——————-
public class ListArrayMain {
public static void main (String[] args) {
ListArray L1 = new ListArray(); // constructs the list L1
L1.InsertBegin(2);
L1.InsertBegin(3);
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L1.InsertBegin(15);
L1.InsertBegin(5);
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worked.
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