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FourtyFour.java

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package HackerRank;

import java.lang.annotation.*;

import java.lang.reflect.*;

import java.util.*;

@Target(ElementType.METHOD)

@Retention(RetentionPolicy.RUNTIME)

@interface FamilyBudget {

String userRole() default "GUEST";

int budgetLimit() default 0;

}

class FamilyMember {

@FamilyBudget(userRole = "SENIOR", budgetLimit = 100)

public void seniorMember(int budget, int moneySpend) {

System.out.println("Senior Member");

System.out.println("Spend: " + moneySpend);

System.out.println("Budget Left: " + (budget - moneySpend));

}

@FamilyBudget(userRole = "JUNIOR", budgetLimit = 50)

public void juniorUser(int budget, int moneySpend) {

System.out.println("Junior Member");

System.out.println("Spend: " + moneySpend);

System.out.println("Budget Left: " + (budget - moneySpend));

}

}

public class FourtyFour {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

int testCases = Integer.parseInt(in.nextLine());

while (testCases > 0) {

String role = in.next();

int spend = in.nextInt();

try {

Class annotatedClass = FamilyMember.class;

Method[] methods = annotatedClass.getMethods();

for (Method method : methods) {

if (method.isAnnotationPresent(FamilyBudget.class)) {

FamilyBudget family = method

.getAnnotation(FamilyBudget.class);

String userRole = family.userRole();

int budgetLimit = family.budgetLimit();

if (userRole.equals(role)) {

if(spend <= budgetLimit){

method.invoke(FamilyMember.class.newInstance(),

budgetLimit, spend);

}else{

System.out.println("Budget Limit Over");

}

}

}

}

} catch (Exception e) {

e.printStackTrace();

}

testCases--;

}

}

}