import java.util.Vector;
import java.util.Collections;
 
public class MinMax {
	
    private Vector stringVector;
    
    public MinMax(String[] input) {
        
        stringVector = new Vector();
        
        for (int i = 0; i < input.length; i++) {
            stringVector.addElement( input[i].toLowerCase() );	
        }
        
        Collections.sort(stringVector);		
    }	
    
    public String getMin() {
        return (String) stringVector.firstElement(); 	
    }	
    
    public String getMax() {
    	return (String) stringVector.lastElement(); 
    }
    
    public static void main(String[] args) {
    	String[] input = {"Pear", "airplane", "Zippo", "deer"};
    	
    	MinMax myMinMax = new MinMax(input);
    	
    	System.out.println( "Minimum value is: "+ myMinMax.getMin() );
    	System.out.println( "Maximum value is: "+     myMinMax.getMax() );
    }		
}
 

import java.util.Vector;
import java.util.Collections;
 
public class MinMaxDouble {
	
    private Vector doubleVector;
    
    public MinMaxDouble(Double[] input) {
        
        doubleVector = new Vector();
        
        for (int i = 0; i < input.length; i++) {
            doubleVector.addElement( input[i] );	
        }
        
        Collections.sort(doubleVector);		
    }	
    
    public Double getMin() {
        return (Double) doubleVector.firstElement(); 	
    }	
    
    public Double getMax() {
    	return (Double) doubleVector.lastElement(); 
    }
    
    public static void main(String[] args) {
    	Double[] input = { new Double(1), new Double(200000), 
    	                   new Double(5), new Double(3456)};
    	
    	MinMaxDouble myMinMax = new MinMaxDouble(input);
    	
    	System.out.println( "Minimum value is: "+ myMinMax.getMin() );
    	System.out.println( "Maximum value is: "+ myMinMax.getMax() );
    }		
}