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The value contained within the square brackets that is used to indicate the length of the array must be a(n): a. class b. double c. string d. integer e. none of the above

Assume an array called num is declared to store four elements.Which of the following statements correctly assigns the value 100 to each of the elements? a. for(x = 0; x < 3; ++x) num [x] = 100 b. for(x = 0; x < 4; ++x) num [x] = 100; c. for(x = 1; x < 4; ++x) num [x] = 100; d. for(x = 1; x < 5; ++x) num [x] = 100; e. none of the above

Choose the statement that does not apply to the following declaration: doubleÆ’[Æ’]Æ’totalCostOfItemsÆ’=Æ’ Æ’Æ’Æ’Æ’{109.95,Æ’169.95,Æ’1.50,Æ’89.95}; a. declares a one-dimensional array of floating-point values b. specifies the size of the array as five c. sets the array element totalCostOfItems [1] to 169.95 d. declares an area in memory where data of double type can be stored e. all are correct

An array is a list of data items that_________ . a. all have the same type b. all have different names c. all are integers d. all are originally set to null ('\0') e. none of the above

Using the following declaration: int [ ] x = {12, 13, 14, 15, 16, 17, 18, 19}; What does x[8] refer to? a. 19 b. 18 c. '\0' d. 0 e. none of the above

Which of the following adds 42 to the element at the fifth physical spot? int [ ] x = {12, 13, 14, 15, 16, 17, 18, 19}; a. x[5] += 42; b. x[4] += 42; c. x[5 + 42]; d. x = 42 + 5; e. none of the above

Which of the following adds 42 to the element at the fifth physical spot? int [ ] x = {12, 13, 14, 15, 16, 17, 18, 19}; a. x[5] += 42; b. x[4] += 42; c. x[5 + 42]; d. x = 42 + 5; e. none of the above

What output is produced by the following code? intƒi; intƒ[ƒ]ƒanArrayƒ=ƒnew intƒ[5]; forƒ(iƒ=ƒ0;ƒiƒ<ƒanArray.Length;ƒi++) ƒƒƒƒƒanArrayƒ[i]ƒ=ƒ2ƒ*ƒi; forƒ(iƒ=ƒ0;ƒiƒ<ƒanArray.Length;ƒi++) ƒƒƒƒƒConsole.Write(anArrayƒ[i]ƒ+ƒ“ƒƒ“); a. 2 2 2 2 2 b. 2 4 6 8 10 c. 0 2 4 6 8 10 d. 0 2 4 6 8 e. none of the above

To convert all the uppercase letters in a string to their lowercase counterpart, you can use the ________ method of the string class. a. IsLower( ) b. ConvertLower( ) c. Lower( ) d. ToLower( ) e. none of the above

Which method in the Array class can be used to get or set the number of elements that an ArrayList can contain? a. Length( ) b. Size( ) c. Dimension( ) d. Rank( ) e. Capacity( )