Something

int tal;int max = 0;int min = 0;int count = 0;while(tal != 0){  tal = scan.nextInt();  if(tal > max) {  max = tal;  } else if(tal < min) {  min = tal;  }   ++count}if(count <= 1){System.out.println("Inget tal");} else {System.out.println(max);System.out.println(min);