package holding;

/**

* RUN:

* javac holding/ArrayIsIterable.java && java holding.ArrayIsIterable

* OUTPUT:

* 1 2 3 A B C

*/

import java.util.*;

public class ArrayIsIterable {

static <T> void test(Iterable<T> ib) {

for(T t : ib) {

System.out.print(t + " ");

}

}

public static void main(String[] args)

{

// Ok !!!

test(Arrays.asList(1, 2, 3));

String[] strings = {"A", "B", "C"};

// Error !!!

//

// required: Iterable<T>

// found: String[]

// reason: no instance(s) of type variable(s) T exist so that argument type String[] conforms to formal parameter type Iterable<T>

// where T is a type-variable:

// T extends Object declared in method <T>test(Iterable<T>)

//

//test(strings);

// Ok !!!

test(Arrays.asList(strings));

}

}