Need Help....2 operator errors

here is my code, what can I do to fix these 2 errors to execute???

2 errors

C:\Program Files\Java\jdk6\bin>javac AmortizationPayment.java
AmortizationPayment.java:49: operator * cannot be applied to int,short[]
double n = 12 * terms; // n is the
number of total payments
^
AmortizationPayment.java:74: operator / cannot be applied to double[],int
i = ((ir / 100) / 12); //conve
rts interest rate to monthly interest rate

Code:

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/**********************************************************************

*            Program:          Mortgage Calculator

*            Purpose:          Week 2 Individual Assignment

*            Programmer:      Kyle von Oven

*            Class:            PRG420

*            Instructor:      Vince Anderson

*            Creation Date:    June 20, 2010

*********************************************************************

*            Programmer        Mod. Date      Purpose

 Kyle von Oven  6-27-2010
*          ------------------  --------------  --------------

*

*

**********************************************************************

*            Program Summary:    A program written in Java (without a graphical user interface) that will calculate and display the monthly payment amount to fully

amortize a $200,000.00 loan over a 30 year term at 5.75‰ interest.



**********************************************************************/
import java.io.IOException;
import java.text.DecimalFormat;

public class AmortizationPayment
{

public static void main(String[] args) throws IOException

{

// Define variables

double    i = 0;                                          // i is the interest rate in decimals
short    []terms = {7,15,30};                                                  // years loan is for
double    n = 12 * terms;                                          // n is the number of total payments
double    Plusone = 0;                                                  // For calculation only
double    Minusone = 0;                                                  // For calculation only
double    raised = 0;                                                    // For calculation only
double    p = 200000;                                                    // p is the principal or loan amount
double    []ir = {0.0535, 0.055, 0.0575};                                                  // interest rate in percentage
double    high = 0;                                                      // For calculation only
double    low = 0;                                                      // For calculation only
double    sum = 0;                                                      // For calculation only
double    m = (p*(i*(Math.pow(1+i,n)))/(Math.pow(1+i,n)-1));            // Mortgage function
double    term;
double    int_rate;

          //This formats the decimals must import java.text.DecimalFormat to use
DecimalFormat df = new DecimalFormat("#,###.00");
DecimalFormat nd = new DecimalFormat("####");

          // program information
System.out.println("Week 3 Individual Assignment: SR-mf-0003 Change Request 1");


                                                                        // Calculations and Printout



i = ((ir / 100) / 12);                                                  //converts interest rate to monthly interest rate

n = (12 * term);                                                        //converts years into months

Plusone = i+1;

high = Math.pow(Plusone,n);

Minusone = high - 1;

sum = i * (high/Minusone);

m = (p * sum);

//for each term and Rate starting from the first location of each array terms[] and Rates[]
    for (int j=0;j<terms.length;j++){
    //Calculates the Payment per month to be paid under mortgage scheme One
        int_rate=ir[j]; //take value from the array  Rates[] to a temporary variable
        term=terms[j]; //take value from the array terms[] to a temporary variable


System.out.println("The monthly payment amount to fully amortize a "+ df.format(p) + " loan over a $"+ term + " year term at "+ ir + "&#37; interest is $"+ df.format(m) + ".");
}

double month = 1;
double user_input;
double counter = 1;                                                      // Sets counter to 1
while (month <= n)
{

if (counter == 30)

{

System.out.println("Press enter to continue, or Type Q to quit");        // User can continue or quit Program
                    user_input = (char)System.in.read();                // Read in userInput

if (user_input == 'Q')                                                  // Start 2nd if loop
{

break;                                                                  // Ends program
}                                                                        // End 2nd if loop

else                                                                    // Start else condition
{

}
}

double pi = p * i;
double pp = m - pi;
double bal = p - pp;

System.out.println("#" + nd.format(month) + " Interest Paid $" + df.format(pi) + " Principal Paid $" + df.format(pp) + " Remaining Balance $" + df.format(bal));

p = bal;
month = month +1;
counter = counter+1;
}
}
}

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You do know this is a Visual Basic forum, right?

So two notes here:

1. Since terms is an array, would this work in Java:

double n = 12 * terms;

to multiply all array items by 12, since that wont work in VB. You need to multiply each item individually through a For loop. Or is that a syntax error and you meant to say:

double n = 12 * terms[x];

2. Since terms is an integers and n is double, does Java do automatic conversions or do you need to typecast it?

Duplicate threads merged - please post each question (or variation of it) only once.

Quote:

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Originally Posted by baja_yu

Since terms is an integers and n is double, does Java do automatic conversions or do you need to typecast it?

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Yes it does. As long as it's a widening conversion