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Q41. Given the code fragments: 

What is the result? 

A. Super 

Sub 

Sub 

B. Contract 

Contract 

Super 

C. Compilation fails at line n1 

D. Compilation fails at line n2 

Answer:


Q42. You are writing a method that is declared not to return a value. Which two are permitted in 

the method body? 

A. omission of the return statement 

B. return null; 

C. return void; 

D. return; 

Answer: AD 


Q43. ArrayList<Integer> list = new ArrayList<>(1); 

2. list.add(1001); 

3. list.add(1002); 

4. System.out.println(list.get(list.size())); 

What is the result? 

A. Compilation fails due to an error on line 1. 

B. An exception is thrown at run time due to error on line 3 

C. An exception is thrown at run time due to error on line 4 

D. 1002 

Answer:


Q44. What is the proper way to defined a method that take two int values and returns their sum as an int value? 

A. int sum(int first, int second) { first + second; } 

B. int sum(int first, second) { return first + second; } 

C. sum(int first, int second) { return first + second; } 

D. int sum(int first, int second) { return first + second; } 

E. void sum (int first, int second) { return first + second; } 

Answer:


Q45. Given the fragment: 

A. 14 

B. 15 

C. 24 

D. 25 

E. 34 

F. 35 

Answer:


Q46. Given the code fragment: 

System.out.printIn ("Result: " +3+5); 

System.out.printIn ("Result: " + (3+5)); 

What is the result? 

A. Result: 8 

Result: 8 

B. Result: 35 

Result: 8 

C. Result: 8 

Result: 35 

D. Result: 35 

Result: 35 

Answer:


Q47. Given the code fragment: 

int [][] array2d = new int[2][3]; 

System.out.println("Loading the data."); 

for ( int x = 0; x < array2d.length; x++) { 

for ( int y = 0; y < array2d[0].length; y++) { 

System.out.println(" x = " + x); 

System.out.println(" y = " + y); 

// insert load statement here. 

System.out.println("Modify the data. "); 

for ( int x = 0; x < array2d.length; x++) { 

for ( int y = 0; y < array2d[0].length; y++) { 

System.out.println(" x = " + x); 

System.out.println(" y = " + y); 

// insert modify statement here. 

Which pair of load and modify statement should be inserted in the code? The load 

statement should set the array's x row and y column value to the sum of x and y 

The modify statement should modify the array's x row and y column value by multiplying it by 2 

A. Load statement: array2d(x,y) = x + y; 

Modify statement: array2d(x,y) = array2d(x,y) * 2 

B. Load statement: array2d[x y] = x + y; 

Modify statement: array2d[x y] = array2d[x y] * 2 

C. Load statement: array2d[x,y] = x + y; 

Modify statement: array2d[x,y] = array2d[x,y] * 2 

Oracle 1z0-803 : Practice Test 

D. Load statement: array2d[x][y] = x + y; 

Modify statement: array2d[x][y] = array2d[x][y] * 2 

E. Load statement: array2d[[x][y]] = x + y; 

Modify statement: array2d[[x][y]] = array2d[[x][y]] * 2 

Answer:


Q48. The catch clause argument is always of type__________. 

A. Exception 

B. Exception but NOT including RuntimeException 

C. Throwable 

D. RuntimeException 

E. CheckedException 

F. Error 

Answer:


Q49. Which two actions will improve the encapsulation of a class? 

A. Changing the access modifier of a field from public to private 

B. Removing the public modifier from a class declaration 

C. Changing the return type of a method to void 

D. Returning a copy of the contents of an array or ArrayList instead of a direct reference 

Answer: AD 


Q50. Given the code fragment: 

What is the result? 

A. 2 2 

B. 1 2 

C. 3 2 

D. 3 3 

Answer: