# RSE Validator Sample Four

This is an example of a validator written by extending an existing RSE-supplied validator, and simply supplying unique messages.

    package org.eclipse.rse.samples.ui.frameworks.dialogs;
    import org.eclipse.rse.core.ui.validators.ValidatorIntegerRangeInput;
    import org.eclipse.rse.samples.*;

    /**
     * An example of a customized validator, that prompts for a birth day.
     */
    public class SampleBirthDayValidator extends ValidatorIntegerRangeInput
    {
    	/**
    	 * Constructor. Specifies the valid range, and unique error messages.
    	 */
    	public SampleBirthDayValidator()
    	{
    		super(1, 31);
    		super.setErrorMessages(SamplesPlugin.getPluginMessage("SPPD1007"), // empty
    		                       SamplesPlugin.getPluginMessage("SPPD1008"), // non-numeric
                                           SamplesPlugin.getPluginMessage("SPPD1009")); // out of range
    	}

    }