fixing format errors

Author: Jonathan-Birkey

src/com/github/jonathanbirkey/chapter03/Exercise09.java

@@ -47,9 +47,12 @@ public static void main(String[] args) {
     int checksum =
         (d1 * 1 + d2 * 2 + d3 * 3 + d4 * 4 + d5 * 5 + d6 * 6 + d7 * 7 + d8 * 8 + d9 * 9) % 11;
     if (checksum == 10) {
-      System.out.printf("The ISBN-10 number is %d%d%d%d%d%d%d%d%dX\n", d1, d2, d3, d4, d5, d6, d7, d8, d9);
+      System.out.printf(
+          "The ISBN-10 number is %d%d%d%d%d%d%d%d%dX\n", d1, d2, d3, d4, d5, d6, d7, d8, d9);
     } else {
-      System.out.printf("The ISBN-10 number is %d%d%d%d%d%d%d%d%d%d\n", d1, d2, d3, d4, d5, d6, d7, d8, d9, checksum);
+      System.out.printf(
+          "The ISBN-10 number is %d%d%d%d%d%d%d%d%d%d\n",
+          d1, d2, d3, d4, d5, d6, d7, d8, d9, checksum);
     }
   }
 }

src/com/github/jonathanbirkey/chapter05/Exercise32.java

@@ -15,10 +15,9 @@ public static void main(String[] args) {
     int lotteryDigit1 = (int) (Math.random() * 10);
     int lotteryDigit2 = 0;
     do {
-    	lotteryDigit2 = (int) (Math.random() * 10);
-    }while(lotteryDigit1 == lotteryDigit2);
-    
-    
+      lotteryDigit2 = (int) (Math.random() * 10);
+    } while (lotteryDigit1 == lotteryDigit2);
+
     Scanner input = new Scanner(System.in);
     System.out.print("Enter your lotter pick (two digits): ");
     int guess = input.nextInt();

src/com/github/jonathanbirkey/chapter05/Exercise36.java

@@ -14,35 +14,35 @@ public static void main(String[] args) {
     System.out.print("Enter the first 9 digits of an ISBN as integer: ");
     int number = input.nextInt();
     input.close();
-    
+
     int tempNumber = number;
     int leadingZeroCounter = 0;
     int checksum = 0;
 
     for (int i = 9; i > 0; i--) {
-    	int digit = tempNumber % 10;
-    	tempNumber = tempNumber / 10;
-    	if(digit == 0) {
-    		leadingZeroCounter++;
-    	}else {
-    		leadingZeroCounter = 0;
-    	}
-    	checksum += digit * i;
+      int digit = tempNumber % 10;
+      tempNumber = tempNumber / 10;
+      if (digit == 0) {
+        leadingZeroCounter++;
+      } else {
+        leadingZeroCounter = 0;
+      }
+      checksum += digit * i;
     }
-    
+
     checksum = checksum % 11;
     System.out.printf("The ISBN-10 number is ");
-    
+
     if (checksum == 10) {
-    	for(int j = 0; j < leadingZeroCounter; j++) {
-    		System.out.print("0");
-    	}
-    	System.out.printf("%dX", number);
+      for (int j = 0; j < leadingZeroCounter; j++) {
+        System.out.print("0");
+      }
+      System.out.printf("%dX", number);
     } else {
-    	for(int j = 0; j < leadingZeroCounter; j++) {
-    		System.out.print("0");
-    	}
-    	System.out.printf("%d%d", number, checksum);
+      for (int j = 0; j < leadingZeroCounter; j++) {
+        System.out.print("0");
+      }
+      System.out.printf("%d%d", number, checksum);
     }
   }
 }

src/com/github/jonathanbirkey/chapter05/Exercise40.java

@@ -12,15 +12,15 @@ public static void main(String[] args) {
     int coin = 0;
     int heads = 0;
     int tails = 0;
-    
+
     for (int i = 0; i < 1000000; i++) {
-    	coin = (int)(Math.random()*2);
-    	if(coin == 1) {
-    		heads++;
-    	}else {
-    		tails++;
-    	}
+      coin = (int) (Math.random() * 2);
+      if (coin == 1) {
+        heads++;
+      } else {
+        tails++;
+      }
     }
-    System.out.printf("Heads: %d\nTails: %d",heads, tails);
+    System.out.printf("Heads: %d\nTails: %d", heads, tails);
   }
 }

src/com/github/jonathanbirkey/chapter05/Exercise41.java

@@ -18,22 +18,21 @@
 public class Exercise41 {
   public static void main(String[] args) {
     Scanner input = new Scanner(System.in);
-   
+
     int max = 0;
     int count = 0;
     int number = -1;
-    
+
     System.out.print("Enter Numbers: ");
-    
-    while(number != 0) {
-    	number = input.nextInt();
-    	if(number > max) {
-    		max = number;
-    		count = 1;
-    	} else if(number == max) {
-    		count++;
-    	}
-    	
+
+    while (number != 0) {
+      number = input.nextInt();
+      if (number > max) {
+        max = number;
+        count = 1;
+      } else if (number == max) {
+        count++;
+      }
     }
     input.close();
     System.out.printf("The largest number is %d\n", max);

src/com/github/jonathanbirkey/chapter05/Exercise44.java

@@ -2,14 +2,25 @@
  * @author : Jonathan Birkey
  * @mailto : jonathan.birkey@gmail.com
  * @created : 28Feb2024
- *     <p>(Display leap years) Write a program that displays all the leap years, 10 per line, from
- *     101 to 2100, separated by exactly one space. Also display the number of leap years in this
- *     period.
+ *     <p>(Computer architecture: bit-level operations) A short value is stored in 16 bits. Write a
+ *     program that prompts the user to enter a short integer and displays the 16 bits for the
+ *     integer. Here are sample runs:
+ *     <p>Enter an integer: 5
+ *     <p>The bits are 0000000000000101
+ *     <p>
+ *     <p>Enter an integer: -5
+ *     <p>The bits are 1111111111111011
  */
 package com.github.jonathanbirkey.chapter05;
 
+import java.util.Scanner;
+
 public class Exercise44 {
   public static void main(String[] args) {
-    // TODO: solve
+    Scanner input = new Scanner(System.in);
+    System.out.print("Enter an integer: ");
+    short decimal = input.nextShort();
+    input.close();
+    System.out.printf("The bits are %d", decimal);
   }
 }