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The following method is intended to print the number of digits in the parameter num. public int numDigits(int num) { int count = 0; while (/* missing condition */) { count++; num = num / 10; } return count; } Which of the following can be used to replace /* missing condition */ so that the method will work as intended?

Consider the following code segment. int a = 24; int b = 30; while (b != 0) {   int r = a % b;   a = b;   b = r; }   System.out.println(a);   What is printed as a result of executing the code segment?

Consider the following method. public static String abMethod(String a, String b) { int x = a.indexOf(b);   while (x >= 0) { a = a.substring(0, x) + a.substring(x + b.length()); x = a.indexOf(b); }   return a; } What, if anything, is returned by the method call abMethod(“sing the song”, “ng”) ?

Consider the following method. /** Precondition: Strings one and two have the same length. */ public static String combine(String one, String two) { String res = “”; for (int k = 0; k < one.length(); k++) { if (one.substring(k, k + 1).equals(two.substring(k, k + 1))) { res += one.substring(k, k + 1); } else { res += "0"; } } return res; } What is returned as a result of the call combine("10110", "01100") ?

Consider the following code segment. int num = 1; for (int k = 2; k < 10; k++) { num = 0; num = num + k; } What will be the value of num after the loop is executed?

Consider the following code segment. int count = 5; while (count < 100) { count = count * 2; } count = count + 1; What will be the value of count as a result of executing the code segment?

Consider the following methods, which appear in the same class. public int function1(int i, int j) { return i + j; }   public int function2(int i, int j) { return j – i; } Which of the following statements, if located in a method in the same class, will initialize the variable x to 11?

Consider the following code segment. int outerMax = 10; int innerMax = 5;   for (int outer = 0; outer < outerMax; outer++) { for (int inner = 0; inner

Consider the following code segment. int value = 15; while (value < 28) {   System.out.println(value);   value++; }   What are the first and last numbers output by the code segment?

Consider the following code segment. int num = 5; num *= 2; num %= 6; What is the value of num after the code segment is executed?