public class Tausche {
  public static void tauscheA (int x, int y) {
    int h = x;
    x = y;
    y = h;
  }
  public static void tauscheB (int[] a, int i, int j) {
    int h = a[i];
    a[i] = a[j];
    a[j] = h;
  }
  public static void main(String args[]) {
    int[] feld = {100, 200, 300, 400 };
    int i;
    for (i=0; i < 4; i++)
      System.out.print(feld[i] + " ");
    System.out.println();
    System.out.println("tauscheA");
    tauscheA (feld[1], feld[2]);
    for (i=0; i < 4; i++)
      System.out.print(feld[i] + " ");
    System.out.println();
    System.out.println("tauscheB");
    tauscheB (feld, 1, 2);
    for (i=0; i < 4; i++)
      System.out.print(feld[i] + " ");
    System.out.println();
  }
}