Using knowledge in computational language in JAVA it is possible to write a code that design and implement a method numberfreq() that takes no parameters. the method reads an arbitrary number of integers.
import java.util.Arrays;
import java.util.Scanner;
//Die class
class Die
{
private int face;
public Die()
{
face=0;
}
public void roll()
{
face=(int)(Math.random()*6+1);
}
public int getface()
{
return face;
}
}
public class TestArrays
{
public static void main(String[] args)
{
//1.Testing numberFreq method
//call numberFreq method
int freq[]=numberFreq();
for (int i = 0; i < freq.length; i++)
{
if(freq[i]!=0)
System.out.printf("%-10d%-10d\n", i+1, freq[i]);
}
//2. Testing bigEven method
int numArray[]= { 2, 7, 8, 3, 4, 10};
int target=5;
System.out.println("Array : "+Arrays.toString(numArray));
System.out.println("Target: "+target);
int count=bigEven(numArray, target);
System.out.println("Count of even elements and greater than target is "+count);
//create an array of 50 Die variables
Die[] dieobjects= new Die[50];
//3. Testing oddDice method
System.out.println("Count of odd dice is "+oddDice(dieobjects));
}
/*Method oddDice takes an array of Die variables
* and returns the number of dice land in odd faces as return value*/
public static int oddDice(Die dices[])
{
int oddfacedices=0;
for (Die die : dices) {
//create object of Die class
die=new Die();
die.roll();
if(die.getface()%2==1)
oddfacedices++;
}
return oddfacedices;
}
/*
* The method bigEven takes an array of integer and target
* and returns the number of even values that are greater than target
* as retunr value.
* */
public static int bigEven(int numArray[] , int target)
{
int counter=0;
for (int i = 0; i < numArray.length; i++)
{
if((numArray[i]%2==0) &&(numArray[i]>target))
counter++;
}
return counter;
}
public static int[] numberFreq()
{
Scanner sc=new Scanner(System.in);
int[] freq=new int[50];
int x=0;
do
{
System.out.printf("Enter a number in range of 0 - 50 or 999 to exit:");
x=Integer.parseInt(sc.nextLine());
if(x!=999)
freq[x-1]++;
}while(x!=999);
return freq;
}
}
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