Java Test Bank – Final Java Test Bank – Final -Exam 1)What is (int)Math.random()? (A) 0 (B) 1 (C) both 0 and 1 are possible (D) None of the above 2)What is the output of the following code? class Test { public static void main(String args[]) { (A) (B) (C) (D) 00 No correct answer Compiler Error garbage value garbage value int arr[2]; System.out.println(arr[0] ); System.out.println(arr[1] ); } } 3) What is the output of the following code? public static void main(String args[]) { int i = 1, j = 0; (A) (B) (C) (D) j=6 j=0 No correct answer j=2 switch (i) case 2: case 4: { j + = 6; j + = 1; default:j + = 2; case 0:j + = 4; } System.out.println("j = " +j); } } Java Test Bank – Final 4) what is the value of z after executing the following code? (A) (B) (C) (D) 0.5 0 error 0.0 5) Analyze the following code : int x = 20; int y = 10; double z = y/x; public class Test { public static void main(String[] args) { (A) (B) (C) (D) The code prints n is 2. syntax error The code prints n is 3. The code prints n is 1. int n = 2; xMethod (n); System.out.println("n is " + n); } public static void xMethod (int n) { n++; } } 6) What is the output of the following code? public static void main(String[] args) { (A) (B) (C) (D) 3 0 6 1 int arr[ ] = new int[ ] {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; int n = 6; n = arr[arr[n] / 2]; System.out.print(n); } Java Test Bank – Final 7) What is the output of the following code? public static void main(String[] args) { (A) (B) (C) (D) String str = new String ("Hello"); Hemo Hemlm Hemmm Hellm for (int i = str.length() - 1; i > 0; i -= 2) { str = str.replace (str.charAt(i), 'm'); } System.out.println (str); } 8) Analyze the following code : public static void main(String[] args) { (A) The code prints k is 3. (B) The code prints k is 0. (C) The code has a syntax error because k is not defined in System.out.println("k is " + k). (D) The code prints k is 2. for (int i = 1; i< 10; i++) { int k = 3; System.out.println(k); } System.out.println("k is " + k); } 9) What is the output of the following code fragment? int[ ] [ ] x={ {1,2,3,4,5}, {6,7,7}, {8,9,10,11}, {12} }; (A) (B) (C) (D) 10 No correct answer 24 20 int sum = 0; for (int i = 0; i < x.length; ++i) { for (int j =1; j < x[i].length ; if ((i == 2 ) || (j == 3)) continue; sum += x[i][j]; } } System.out.println (sum) ; ++j) { Java Test Bank – Final 10) Based on the code segment below, the valid and accessible output statements in Class2 are: (A) x and y (B) only x (C) x and y and z (D) only y 11) (A) sum = a[i][i]; (B) sum = a[i][i]; (C) sum += a[i][j]; (D) No correct answer Java Test Bank – Final IT Zone Team 12) What is the output of the following code? public static void main(String[] args) { (A) (B) (C) (D) History of History Jordan Histor String str = new String(“History of jordan”); String str2 = “” ; For (int i= 0; i< str.length() / 2-2 ;i++ ) { Str2 += str.substring(I, i+1); } System.out.println(str2); } 13) In java, array elements are stored in………memory locations. (A) (B) (C) (D) Sequential Random No correct answer Sequential & Random Java Test Bank – Final 14) The classes below is used for Questions from 14-24 15) What is the output for statement #1 (A) (B) (C) (D) 2 4 6 Error 16) based on the picture from question 15: *What is the output for statement #2 (A) Error Java Test Bank – Final (B) (C) (D) 4 6 2 17) based on the picture from question 15: *What is the output for statement #3 (A) (B) (C) (D) Error 4 6 2 18) based on the picture from question 15: *What is the output for statement #4 (A) 2 (B) 4 (C) Error (D) 6 19) based on the picture from question 15: *What is the output for statement #5 (A) (B) (C) (D) Error 6 1 2 Java Test Bank – Final 20) based on the picture from question 15: *What is the output for statement #6 (A) (B) (C) (D) 8 4 6 Error 21) based on the picture from question 15: *What is the output for statement #7 (A) (B) (C) (D) Error 4 2 6 22) based on the picture from question 15: *What is the output for statement #8 (A) (B) (C) (D) Error 2 6 4 Java Test Bank – Final 23) based on the picture from question 15: *What is the output for statement #9 (A) (B) (C) (D) Error 9 7 8 24) based on the picture from question 15: *What is the output for statement #10 (A) (B) (C) (D) Error 3 2 4 25) based on the picture from question 15: *What is the output for statement #11 (A) (B) (C) (D) 4 6 Error 2 Java Test Bank – Final 26) if we need to write a method to find the Sum of all even integers in a two dimensional array, what would be the statement (1)? int x x [ ][ ] = {{3, 4, 5, 1), {33, 6, 1, 2}} for (int i=0;i (A) (B) (C) (D) (E) int min=0 Something else int sum[0] =0; int sum = 0; sum = x[0][0]; 27) if we need to write a method to find the Sum of all even integers in a two dimensional array, what would be the statement (2)? int xx[][] = {{3, 4, 5, 1}, {33, 6, 1, 2}}; for (int i=0;i *(2 Points) (A) (B) (C) (D) (E) xx[i].length i Something else xx.length 5

Java Test Bank Final Exam

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