Foobar.java

import java.util.*;

class MinMax extends Thread
{ 
  int[] data; 
  boolean computeMin; 
  public int result = 0; 
 
  public MinMax(int[] f, boolean min){ 
    data = f; 
    computeMin = min; 
  } 
 
  public void compute() {
    result = data[0]; 
    for (int i = 1; i < data.length; i++) 
    { 
      if (computeMin) { 
        if (data[i] < result) result = data[i]; 
      } else { 
        if (data[i] > result) result = data[i]; 
      } 
    } 
  } 

  public void run() {
	compute();
  }
} 

public class MyProg { 
  public static void main(String[] args) { 
  int[] a = {23,10,3,49,7,5,123,32,92,17}; 
 
  MinMax a1 = new MinMax(a, true); 
  MinMax a2 = new MinMax(a, false); 
  a1.run(); //Berechnung 1 
  a2.run(); //Berechnung 2 
 
  try {
   a1.join();
   a2.join();
  }
  catch(InterruptedException e)
  { }
 
  System.out.println("Min: " + a1.result + ", Max: " + a2.result);
 }
}