Java: I need help to get started on my programming assignment: Write a program that prompts a user to enter data for an array. T

Question

I don't know how to write a code that will allow the user to input ANY primitive data type. I understand how to code the bottom half to for the getTotal, etc. I just need help with creating a code to get the input of ANY primitive data type. I know I will need to use the scanner class.

Here is the whole assignment: Write a program that prompts a user to enter data for an array. The user should be able to input ANY primitive data type (int, float, double, long). The program should also have the following methods:

• getTotal. This method should accept a one-dimensional array as its argument and return the total of the values in the array.
• GetAverage. This method should accept a one-dimensional array as its argument and return the average of the values in the array.
• GetHighest. This method should accept a one-dimensional array as its argument and return the highest of the values in the array.
• GetLowest. This method should accept a one-dimensional array as its argument and return the lowest of the values in the array.

Answer 1

use a scanner to get the users input. You can just make the input a type double since the data type the user enters wont matter with the upcasting unless its a character. (unless assignment says not to do that).
use the scanner by:
*importing it
*creating the object
*then get input with next() methods
ex/
import java.util.Scanner;
// top of program

//inside methods
Scanner scannerName = new Scanner(System.in);
double input = scannerName.nextDouble();
// or whatever datatype you wanted to use

Answer 2

I believe Rrestoring faith's answer is the correct one

Answer 3

Type isnt defined for a string value, put it in quotes or dont initialize it. you also havent given the scanner object a name.

like:
String input;
Scanner keyboard = new Scanner(System.in);

ps: do you only need to use one array for the assignment? like what @hojat said

Answer 4

could you please provide an example

Answer 5

Hello.. here is what I have so far, but it keeps giving me an error and I am not sure what to do:

import java.util.Scanner;

public class Pass9
{
public class static void(String[] args)
{
String input = type;

Scanner = new Scanner(System.in);
System.out.println("Enter Data Type: ");
input = keyboard.nextLine();

}
if (type.equals("INT"))
{
//Declare array here of the type int
System.out.println(" Enter integer: ");
}
else if (type.equals("DOUBLE"))
{
System.out.println("Enter double: ");
}
else if (type.equals("LONG"))
{
System.out.println ("Enter long: ");
}
else if (type.equals("FLOAT"))
{
System.out.println("Enter float: ");
}

private static int getTotal(int[] iarray)
{
int total = 0;

for(int i=0; i<iarray.length; i++)
{
total += iarray[i];
}

return total;
}

private static int getAverage(int[] iarray)
{

int total = getTotal(iarray);

return total / iarray.length;
}

private static int getHighest(int[] iarray)
{

int highest = iarray[0];

for(int i=0; i<iarray.length; i++)
{
int index = iarray[i];

if(index > highest)
{

highest = index;
}
}

return highest;
}

private static int getLowest(int[] iarray)
{
int lowest = iarray[0];

for(int i=0; i<iarray.length; i++)
{

int index = iarray[i];

if(index < lowest)
{
lowest = index;
}
}

return lowest;
}
}
}

Answer 6

I really need some Java assignment help. I'm working on a programming task where I have to write a Java program that lets a user input data for an array. The tricky part is — the user should be able to input ANY primitive data type (like int, float, double, or long). I understand how to handle the calculations (like total, average, etc.), but I'm stuck on how to actually get the user input in a flexible way using the Scanner class.

Here’s the full assignment:

Write a program that prompts a user to enter data for an array. The user should be able to input ANY primitive data type (int, float, double, long). The program should also have the following methods:

• getTotal: Accepts a 1D array and returns the total.
• getAverage: Accepts a 1D array and returns the average.
• getHighest: Accepts a 1D array and returns the highest value.
• getLowest: Accepts a 1D array and returns the lowest value.

If anyone’s worked on something like this before or can guide me through handling different data types with user input, I’d really appreciate it
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Thanks in advance!

Answer 7

use whiteboard call class that creates array make getters n setters