Java Programs

/**
 * ArrayList input={"a","d","c","b"};
 * String[] output={"a","b","c","d"};
 */

package programs;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class ArrayListSortToString {
public static void main(String args[]) {

List<String> input = new ArrayList<String>();
input.add("a");
input.add("d");
input.add("c");
input.add("b");

Collections.sort(input);

String[] output = input.toArray(new String[input.size()]);

for (int i = 0; i < output.length; i++) {
System.out.println(output[i]);
}

}
}