Java quiz. What is the result of the following program execut

What is the result of the following program execution?


class Test2 {
    static int N(Integer x) {
        return x;
    }
}

public class Test {
    static int M(Integer v){
        return v;
    }
    public static void main(String[] args){
        Integer x = M(100);     // 1
        Integer z = N(100);     // 2
        System.out.println(x + " " + z);
    }
}

Compilation error in line 1
Compilation error in line 2
Runtime error in line 1
Runtime error in line 2
"100 100" without quotation marks will be printed out
Code will not compile because of errors in both lines

Explanation

In line 1, the method will be found and 100 will be autoboxed to Integer, the method will return an int, hence the object will be autounboxed, but x is an Integer object and 100 will be autoboxed again into Integer.
A compilation error will occur in line number 2 because the method N(int) will not be found.