Is odd, Coin change, long division

public static boolean isOdd(int i) {
           // return i % 2 == 1;  // WRONG
          
          return i % 2 != 0;
          
          // return (i & 1) != 0;  // Quick way
      } 
      
      //import java.math.BigDecimal;
      public static void changeWord() {
    	  
    	  System.out.println(2.00 - 1.10);  // wrong
    	  
    	  System.out.printf("%.2f%n", 2.00 - 1.10); // poor solution
    	  
          System.out.println(new BigDecimal("2.00").subtract(new BigDecimal("1.10")));
      }      
      
      public static void longDivision() {
    	  final long MICROS_PER_DAY = 24 * 60 * 60 * 1000 * 1000; // Add 24L
    	  final long MILLIS_PER_DAY = 24 * 60 * 60 * 1000;
    	  System.out.println(MICROS_PER_DAY / MILLIS_PER_DAY);  
      
      }