Now am getting incompatible error when using the if else statements
trying to run the program below but am getting an error when using the switch method
import java.util.Scanner;
/** * * @author kern public class loans {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
//variabled decleared
double rate, payment,principal,interest,n;
int length;
String period;
//input
System.out.print("Enter the amount of money borrowed: $");
principal = input.nextDouble();
System.out.print("Enter the annual interest rate: ");
interest = input.nextDouble();
System.out.print("Enter the payment period :");
period = input.next();
System.out.print("Enter Loan Length:");
length = input.nextInt();
//process
rate=interest/100;
payment= principal*(rate*Math.pow((1+rate),n)/ Math.pow ((1+rate),n));
if (period==annually) {
n=1*length;
System.out.prtintf(Your monthly sum is %f:,payment);{
if (period==semiannuall) {
n=2*length;
System.out.prtintf(Your monthly sum is %f:,payment);{
if (period== quarterly) {
n=4*length;
System.out.prtintf(Your quarterly sum is %f:,payment);{
if (period==monthly) {
n=12*length;
System.out.prtintf(Your monthly sum is %f:,payment);{
}
}
String as case value are supported from java 7
See
You need to use it like
if("annually".equals(period)){
}
Per Jigar Joshi link you can do strings now:
Using Strings in switch Statements
In Java SE 7 and later, you can use a String object in the switch statement's expression. The following code example, StringSwitchDemo, displays the number of the month based on the value of the String named month:
public class StringSwitchDemo {
public static int getMonthNumber(String month) {
int monthNumber = 0;
if (month == null) {
return monthNumber;
}
switch (month.toLowerCase()) {
case "january":
monthNumber = 1;
break;
case "february":
monthNumber = 2;
break;
case "march":
monthNumber = 3;
break;
case "april":
monthNumber = 4;
break;
case "may":
monthNumber = 5;
break;
case "june":
monthNumber = 6;
break;
case "july":
monthNumber = 7;
break;
case "august":
monthNumber = 8;
break;
case "september":
monthNumber = 9;
break;
case "october":
monthNumber = 10;
break;
case "november":
monthNumber = 11;
break;
case "december":
monthNumber = 12;
break;
default:
monthNumber = 0;
break;
}
return monthNumber;
}
public static void main(String[] args) {
String month = "August";
int returnedMonthNumber =
StringSwitchDemo.getMonthNumber(month);
if (returnedMonthNumber == 0) {
System.out.println("Invalid month");
} else {
System.out.println(returnedMonthNumber);
}
}
}
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