Bonjour, pourriez vous m'expliquer ce qui cloche svp ? Je vous remercie d'avance car, je suis bloqué !

Isn't it embarrassing to play the outraged person when the answer has already been given? Guadalupe Gagnon: The reason this code does not pass is because it specifically says to use the method with 2 parameters in the method with 4 parameters. OP will need to update their code to include this requirement. Wanting to be spoon-fed should not be a characteristic of a programmer.

ça ne m'aide pas, vraiment pas.

The point of this task is to force you to realize that big problems can be broken down into little problems. The minimum of four numbers can be obtained laboriously in your way. But what do you do if you have to find the minimum of 6 or even 10 numbers. One way to solve the problem in a simpler way is the required min(int, int) method. The validation here only requires that a call to this method takes place. Now you could just put this in your code somewhere inside the min(int, int, int, int) method, e.g. right at the beginning between line 8 and 9:

min(0, 0);

But as I said, that's not the point. Use this min(int, int) method, decompose your big problem. Take the minimum of a and b.

int minAB = min(a, b);

And the minimum of c and d:

int minCD = min(c, d);

The result of these two operations are two numbers, which you again can pass to the min method.

int min = min(minAB, minCD);
return min;

And you have solved the problem. Or in shorter:

return min(min(a, b), min(b, c)); // or whatever nesting you prefer.

Please try to remain polite and not belittle the effort of the people here. Everyone here is learning Java, just like you. So the help you are getting is from students in their spare time. Time they sacrifice for you. Ask if things are not clear to you but refrain from comments like 'useless'.

java ignores white space so, while it may be more proper to use accepted formatting, it has nothing to do with why the OP is failing. The reason this code does not pass is because it specifically says to use the method with 2 parameters in the method with 4 parameters. OP will need to update their code to include this requirement so that they may pass.

rien a changé

I dont understand nothing ...

useless