I am new to java, I’m trying to calculate the net income, I want the user to return to calculation if I get the negative net value. I tried to use try catch statement but it failing to return to where it started. Please help.
Here is my code below
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter your income: ");
double income = scanner.nextDouble();
System.out.print("Enter your expenses: ");
double expenses = scanner.nextDouble();
double nett = income - expenses;
if (nett < 0) {
try {
System.out.println("Please enter correct expense value");
} catch (Exception e) {
}
}
System.out.println("Your nett income is " + nett);
}
}
>Solution :
Hm, try-catch blocks don’t work that way, instead you would want to wrap your program in a while-loop:
public class Main {
public static void main(String[] args) {
double nett = -1;
try(Scanner scanner = new Scanner(System.in)){
while(nett<0){
System.out.print("Enter your income: ");
double income = scanner.nextDouble();
System.out.print("Enter your expenses: ");
double expenses = scanner.nextDouble();
nett = income - expenses;
if (nett < 0) {
System.out.println("Please enter correct expense value");
}
}
}
System.out.println("Your nett income is " + nett);
}
}