In Java arrays are primitive data type objects None of these object references TRUE ANSWER : ? YOUR ANSWER : ?
What would be the result of attempting to compile and run the following code?public class HelloWorld{ public static void main(String[] args){ double[] x = new double[]{1, 2, 3}; System.out.println("Value is " + x[1]); }} The program compiles and runs fine and the output The program has a compile error because the syntax new double[]{1, 2, 3} is wrong and it should be replaced by new double[]{1.0, 2.0, 3.0}; The program has a compile error because the syntax new double[]{1, 2, 3} is wrong and it should be replaced by new double[3]{1, 2, 3}; The program has a compile error because the syntax new double[]{1, 2, 3} is wrong and it should be replaced by {1, 2, 3}. TRUE ANSWER : ? YOUR ANSWER : ?
Which will legally declare, construct, and initialize an array? int [] myList = (5, 8, 2); int myList [] [] = {4,9,7,0}; int myList [] = {4, 3, 7}; int [] myList = {}; TRUE ANSWER : ? YOUR ANSWER : ?
When you pass an array to a method, the method receives ________ . A copy of the first element. The reference of the array. A copy of the array. The length of the array. TRUE ANSWER : ? YOUR ANSWER : ?
What is the output of the following code?public class Test{ public static void main(String args[]){ double[] myList = {1, 5, 5, 5, 5, 1}; double max = myList[0]; int indexOfMax = 0; for(int i = 1; i < myList.length; i++){ if(myList[i] > max){ max = myList[i]; indexOfMax = i; } } System.out.println(indexOfMax); }} 2 1 3 0 4 TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following is a valid statement? char[] c = new char[]; char[] c = new char(); char[] c = new char[5]; char[] c = new char(4); TRUE ANSWER : ? YOUR ANSWER : ?
What will be the output?public class Test{ public static void main(String[] args){ int[] x = new int[3]; System.out.println("x[0] is " + x[0]); }} The program runs fine and displays x[0] is 0. The program has a runtime error because the array element x[0] is not defined. The program has a compile error because the size of the array wasn't specified when declaring the array. The program has a runtime error because the array elements are not initialized. TRUE ANSWER : ? YOUR ANSWER : ?
What is output of the following code:public class Test{ public static void main(String[] args){ int[] x = {120, 200, 016 }; for(int i = 0; i < x.length; i++) System.out.print(x[i] + " "); }} 120 200 016 120 200 14 016 is a compile error. It should be written as 16. 120 200 16 TRUE ANSWER : ? YOUR ANSWER : ?
What will be the output of the program?public class Test{ public static void main(String [] args){ String s1 = args[1]; String s2 = args[2]; String s3 = args[3]; String s4 = args[4]; System.out.print(" args[2] = " + s2); }}and the command-line invocation is C:Java> java Test 1 2 3 4 args[2] = null args[2] = 2 An exception is thrown at runtime. args[2] = 3 TRUE ANSWER : ? YOUR ANSWER : ?
Determine output:public class Test{ public static void main(String[] args){ int[] x = {1, 2, 3, 4}; int[] y = x; x = new int[2]; for(int i = 0; i < x.length; i++) System.out.print(y[i] + " "); }} 0 0 0 0 1 2 3 4 1 2 0 0 None of these TRUE ANSWER : ? YOUR ANSWER : ?