Where is the encapsulation?

Question

I am a new programmer, so please excuse any dumbness of this question, how does the following code encapsulate personal data? -

public class SomeClass
{
    private int age;

    public int Age
    {
        get { return age; }
        set { age = value; }
    }

    public SomeClass(int age)
    {
        this.age = age;
    }
}

I mean, without restriction logic or filtering logic in properties, how does this code differ from the following -

public class SomeClass
{
    public int age;

    public SomeClass(int age)
    {
        this.age = age;
    }
}

Is the first code providing any encapsulation at all?

Answer 1

It provides one part of encapsulation: it says: "There is an Age property that you can get and set, but I won’t tell you how I implement it."

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When using getters and setters, you can restrict access to private variables . This may be a form of encapsulation.

i.e.

private int x

public int getInt(String password){
 if(password == 'RealPassword'){
   return x
  }
}