[Java] How to throws Exception using Functional Interface and Lambda code


If you are wondering if you can throw exception for a method in Functional Interface, you can do it by using throws keyword,

Example:
package org.code2care;

@FunctionalInterface
public interface Calculate {
    
    public int divide(int number1,int number2) throws Exception;

}
Implementing Lambda expression with Exception:
import org.code2care.Calculate;

public class Example {

    public static void main(String[] args) {

        int num1=40;
        int num2=0;

        Calculate calculate = (no1,no2) -> no1 / no2;

        try {
            System.out.println(calculate.divide(num1, num2));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
Output:
java.lang.ArithmeticException: / by zero
	at Example.lambda$main$0(Example.java:10)
	at Example.main(Example.java:13)

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