private int maxR2(int[] v, int y, int z){
       int x = v[z];
       if(y == v.length-1){
          return v[y];
       }
       else{
          if( x < v[y]){
             x = v[y];
          }
          System.out.println("Test");
          maxR2(v, y+1, x);
       }
       return x;
    }

      int[] tt = new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
      Uppgift6 t = new Uppgift6();
      System.out.println(t.maxR(tt));