my program fails over and over! and idk why... please help

Question about the task

Under discussion

public class Solution { public static void main(String[] args) { Person person = new Person(); System.out.println("Age is: " + person.age); person.adjustAge(person.age); //System.out.println("Adjusted age: " + person.age); } public static class Person { public int age = 20; public void adjustAge(int age) { age = age + 20; System.out.println("The age in adjustAge() is " + age); System.out.println("Adjusted age is: " + age); } } }

Think about what the program is doing.
Fix the programming error so that person.age changes value.

Hint:
carefully review the adjustAge method.

Requirements:

The program should display text on the screen.
The Person class should have a public int field called age.
The Person class's adjustAge method should display text on the screen.
The Person class's adjustAge method must have only one int parameter named age, and the method must be void.
The main method should call the adjustAge method only once.
The Person class's adjustAge method should increase the Person's age by 20.

package com.codegym.task.task04.task0401; /* This age doesn't work for me… */ public class Solution { public static void main(String[] args) { Person person = new Person(); System.out.println("Age is: " + person.age); person.adjustAge(person.age); //System.out.println("Adjusted age: " + person.age); } public static class Person { public int age = 20; public void adjustAge(int age) { age = age + 20; System.out.println("The age in adjustAge() is " + age); System.out.println("Adjusted age is: " + age); } } }

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Wahiba BOUDA

Level 5 , ORLEANS, France

28 November 2019, 12:45

in this line: age = age + 20; the variable age is the one passed in the methos and not the attribute age of the class Person.. You have to add something to access the attribute age of the class...

Guadalupe Gagnon

Level 37 , Tampa, United States

25 November 2019, 18:10

useful

this code still has not changed the class variable 'age' as required by the conditions. Uncomment line 13, remove line 22, then figure out how to make the output: Age is: 20 The age in adjustAge() is 20 Adjusted age: 40 Understanding variable scope will help: https://www.geeksforgeeks.org/variable-scope-in-java/

Ethan

Level 7 , Hannover, Germany

25 November 2019, 19:09

But this one works well and still... package com.codegym.task.task04.task0401; /* This age doesn't work for me… */ public class Solution { public static void main(String[] args) { Person person = new Person(); System.out.println("Age: " + person.age); person.adjustAge(person.age); // System.out.println("Adjusted age: " + person.m); } public static class Person { public int age = 50; public void adjustAge(int age) { int age1 = age + 20; int m = age1 - age; System.out.println("The age in adjustAge() is " + age1); System.out.println("Adjusted age = " + m); } } }

Guadalupe Gagnon

Level 37 , Tampa, United States

25 November 2019, 19:17

It does not work as the code still does not change the value of person.age as the requirements say to. In the above code person.age equals 50 when a new person is created, equals 50 when person.adjustAge() is called, and still equals 50 after the method ends. This is not how the code should work. The person.adjustAge(person.age) should increase the value by what is passed in (it should be 20 but you changed it to 50).

Guadalupe Gagnon

Level 37 , Tampa, United States

25 November 2019, 19:18

reset the task back to: public class Solution { public static void main(String[] args) { Person person = new Person(); System.out.println("Age: " + person.age); person.adjustAge(person.age); System.out.println("Adjusted age: " + person.age); } public static class Person { public int age = 20; public void adjustAge(int age) { age = age + 20; System.out.println("The age in adjustAge() is " + age); } } } And the highlighted value above should change by 20.