Exemple.java

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public class Exemple
{
    private static final String TAG = "Exemple";   
    private final int NB = 42;                     

    private int a;                                  
    
    public Exemple()
    {        
        this.a = 0;
    }

    public Exemple(int a)
    {
        this.a = a;
    }

    public int getA()
    {
        return a;
    }

    public void setA(int a)
    {
        if(!estValide(a))
            throw new IndexOutOfBoundsException("erreur plage");
        this.a = a;
    }

    private boolean estValide(int a)
    {
        if(a < 0 || a > NB)
            return false;
        return true;
    }
}