int[] winter = {1,2,12}; int[] spring = {3,4,5}; int[] summer = {6,7,8}; int[] autumn = {9,10,11}; int a = Arrays.binarySearch(winter, month); int b = Arrays.binarySearch(spring, month); int c = Arrays.binarySearch(summer, month); int d = Arrays.binarySearch(autumn, month); if(a>=0) { System.out.println("Зима"); } if(b>=0) { System.out.println("Весна"); } if(c>=0) { System.out.println("Лето"); } if(d>=0) { System.out.println("Осень"); }