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Consider the following code segment. int j = 1; while (j < 5) { int k = 1; while (k < 5) { System.out.println(k); k++; } j++; } Which of the following best explains the effect, if any, of changing the first line of code to int j = 0; ?

Consider the following code segment. int num1 = 0; int num2 = 3; while ((num2 != 0) && ((num1 / num2) >= 0)) {   num1 = num1 + 2;   num2 = num2 – 1; } What are the values of numl and num2 after the while loop completes its execution?

Consider the following code segments.     I.   int k = 1;     while (k < 20)     {       if (k % 3 == 1)         System.out.print( k + " ");         k = k + 3;     }      II.   for (int k = 1; k < 20; k++)     {       if (k % 3 == 1)         System.out.print( k + " ");     }      III.  for (int k = 1; k < 20; k = k + 3)     {       System.out.print( k + " ");     }   Which of the code segments above will produce the following output?     1 4 7 10 13 16 19

Consider the following method. public static int what(String str, String check) { int num = -1; int len = check.length(); for (int k = 0; k + len

Consider the following code segment. int counter = 0; for (int x = 10; x > 0; x–) { for (int y = x; y

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?