Java / Compiler / Packages - https://www.minte9.com/java/compiler-packages-1220

package.java

/**
 * Import libraries required by the following code
 */

/**
 * SOLUTION
 */
import java.util.List;
import java.util.ArrayList;

class App {

    public static void main(String[] args) {
        
        List<Integer> list = new ArrayList<>();
        list.add(1);
        list.add(2);
        System.out.println(list);  // [1, 2]
    }
}