Why the if statements are not working what is wrong with my code please help me to find out the bug(solved)

Question

import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number: ");
int num = sc.nextInt();
System.out.print("Enter next number: ");
int num1 = sc.nextInt();
System.out.print("Enter operator: ");
String operator=sc.next();
int sum = num + num1;
int diff = num - num1;
int mul = num * num1;
int div = num / num1;
if (operator=="+") {
System.out.println("sum of numbers=" + sum);
} else if (operator=="-") {
System.out.println("The difference of numbers= " + diff);
} else if (operator=="×") {
System.out.println("the product= " + mul);
} else if (operator=="÷") {
System.out.println("the division= " + div);
}
else{
System.out.println("invalid operator");
}

}
}

Answer 1

U 'll need 1 more else stmt at last to satisfy syntax.
May it be like:
else {
System.out.println("wrong operator"); }

Answer 2

If and else if statement is not work because condition is false in every operator.
Variable operator store reference number of string
And if you compare like
Reference number == "+"
Than its gives false .
So try the equals method when you compare strings
if(operator.equals("+"))

Answer 3

I tried that but then also it's not working

Answer 4

When I entered the operator it always giving output as invalid operator

Answer 5

Thank you so much it's working now

Answer 6

Welcome 🤗