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2021 Mar 1Z0-803 test question

Q31. 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:


Q32. What is the result? 

A. sc: class.Object asc: class.AnotherSampleClass 

B. sc: class.SampleClass asc: class.AnotherSampleClass 

C. sc: class.AnotherSampleClass asc: class.SampleClass 

D. sc: class.AnotherSampleClass asc: class.AnotherSampleClass 

Answer:


Q33. Given the code fragment: 

Boolean b1 = true; 

Boolean b2 = false; 

int i = 0; 

while (foo) { } 

Which one is valid as a replacement for foo? 

A. b1.compareTo(b2) 

B. i = 1 

C. i == 2? -1 : 0 

D. "foo".equals("bar") 

Answer:


Q34. Given the code fragment: 


Q35. Which three are valid types for switch?

A. int

B. float

C. double

D. integer

E. String

F. Float

Answer: ADE


Abreast of the times 1Z0-803 download:

Q36. public class Two { 

public static void main(String[] args) { 

try { 

doStuff(); 

system.out.println("1"); 

catch { 

system.out.println("2"); 

}} 

public static void do Stuff() { 

if (Math.random() > 0.5) throw new RunTimeException(); doMoreStuff(); 

System.out.println("3 "); 

public static void doMoreStuff() { 

System.out.println("4"); 

Which two are possible outputs? 

A. 2 

B. 4 3 1 

C. 1 

D. 1 2 

Answer: AB 


Q37. Given the code fragment:  

A. Found Red 

Found Default 

B. Found Teal 

C. Found Red 

Found Blue 

Found Teal 

D. Found Red 

Found Blue 

Found Teal 

Found Default 

E. Found Default 

Answer:


Q38. 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:


Q39. given: 

A. ns = 50 S = 125 

ns = 125 S = 125 

ns = 100 S = 125 

B. ns = 50 S = 125 

ns = 125 S = 125 

ns = 0 S = 125 

C. ns = 50 S = 50 

ns = 125 S = 125 

ns = 100 S = 100 

D. ns = 50 S = 50 

ns = 125 S = 125 

ns = 0 S = 125 

Answer:


Q40. Given: 

What is the result? 

A. 1 1 1 

B. 1 2 3 

C. 2 3 4 

D. Compilation fails 

E. The loop executes infinite times 

Answer: