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import org.apache.commons.collections.ComparatorUtils;
import org.apache.commons.collections.comparators.BooleanComparator;
import org.apache.commons.collections.comparators.FixedOrderComparator;
import java.util.Arrays;
import java.util.Comparator;
public class ComparatorExampleForBuildInDataType {
private static Comparator boolComp;
private static Comparator fixedComp;
private static Boolean boolParams[] = {new Boolean(true), new Boolean(true),
new Boolean(false), new Boolean(false)};
private static String stringParams[] = {"Russia", "Canada", "USA", "Australia", "India"};
public static void main(String args[]) {
ComparatorExampleForBuildInDataType example = new ComparatorExampleForBuildInDataType();
example.createComparators();
Arrays.sort(boolParams, boolComp);
example.printArray(boolParams);
Arrays.sort(stringParams);
example.printArray(stringParams);
Arrays.sort(stringParams, fixedComp);
example.printArray(stringParams);
}
private void createComparators() {
boolComp = ComparatorUtils.booleanComparator(true);
fixedComp = new FixedOrderComparator(stringParams);
}
private void printArray(Object[] array) {
for(int i = 0; i < array.length; i++)
System.err.println(array[i]);
}
}
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ApacheCollectionComparatorExampleForBuildInDataType.zip( 514 k)