Question

Using arrays and methods do the following problem:?
Update : recursive equation for an arithmetic
sequence a(n)=a(n-1)+d


given the following data 3,7,11,15,19,

A) determine the data for a1 to a30 and display in array form

B) multiply the values by pi and display in an array form.


here what i have but keep getting error

import java.util.*;



public class RecursiveEquationSequence{

public static void main(String[] args) {

int intArray = new int[];

// define other variabes
int d=4; // incerement


// initaize the firt array by storing first value

intArray[0]=3;

// start a loop to store values in array

for ( int i=1; i<=30; i++)
{
intArray[i]=intArray[i-1]+d;
}

// Print the Array values


for ( int i=0; i<=30; i++)
{
System.out.println("Sequence "+i+" Array VAlue "+intArray[i]);
}



// print the array value by multiplying with PI.

for ( int i=0; i<=30; i++)
{
System.out.println("Sequence "+i+" Array VAlue multiplied by PI "+intArray[i]*Math.PI);
}


// Extra work
// Change Array value by multiplying with PI


for ( int i=0; i<=30; i++)
{
intArray[i]=intArray[i]*Math.PI;
}

// Prinit the changed value


for ( int i=0; i<=30; i++)
{
System.out.println("Sequence "+i+" Array VAlue "+intArray[i]);
}


}
}

Answer 1

What did you try so far? Where did you have trouble?

Answer 2

Did you start the problem?