public static String[] reverseIt(String[] array) { String[] reverse = new String[array.length]; for (int i = 0; i < reverse.length; i++) reverse[i] = array[array.length - 1 - i]; return reverse; }
public static double average(double[] values) { double sum = 0.0; for (int i = 0; i < values.length; i++) sum += values[i]; return sum / values.length; }
for (int i = 0; i < word.length; i++) { if (word[i] == 'a' || word[i] == 'A') word[i] = '@'; else if (word[i] == 'e' || word[i] == 'E') word[i] = '3'; }
public static boolean sameShape(int[][] matrixA, int[][] matrixB) { // check if # of rows is same if (matrixA.length != matrixB.length) return false; // error // for each row, check if # cols is same for (int row = 0; row < matrixA.length; row++) if (matrixA[row].length != matrixB[row]) return false; // error return true; }
int[][] sum; // first check that A and B have the same shape if (sameShape(A, B) { // assume all rows have same number of columns sum = new int[A.length, A[0].length]; // compute A + B for (int row = 0; row < A.length; row++) for (int col = 0; col < A[row].length; col++) sum[row][col] = A[row][col] + B[row][col]; } else System.out.println("Can't add matrices of different sizes");