Answers to Self-Check Problems - Building Java Programs: A Back to Basics Approach - page 1066

22. {7, 3, 1, 0, 8, 18, 5, -1, 5}

23. (a) 0

(b) 9

(c) 6

(d) 8

(e) 2

24. (a) {8}

(b) {14, 8}

(c) {7, 2, 3, 3, 1, 4}

(d) {10, 9, 9, 6, 6}

(e) {12, 12, 11, 11, 9, 8}

25. public static double averageLength(String[] strings) {
int sum = 0;
for (int i = 0; i < strings.length; i++) {
sum += strings[i].length();

}
return (double) sum / strings.length;

}

26. public static boolean isPalindrome(String[] array) {
for (int i = 0; i < array.length / 2; i++) {
if (!array[i].equals(array[array.length - 1 - i])) {
return false;

}

}
return true;

}

27. for (int i = 0; i < 7; i++) {
data[2][i] = i + 1;

}

28. int[][] table = new int[5][10];
for (int i = 0; i < 5; i++) {
for (int j = 0; j < 10; j++) {
table[i][j] = i * j;

}

}

29. for (int i = 0; i < 6; i++) {
matrix[i][4] = matrix[i][1];

}

30. int[][] jagged = new int[5][];
int value = 1;