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2021 Mar 1z0-808 practice exam

Q71. Given: 

What is the result? 

A. Area is 6.0 

B. Area is 3.0 

C. Compilation fails at line n1 

D. Compilation fails at line n2. 

Answer: D 

Q72. Given the code fragment: 

System.out.println(2 + 4 * 9 - 3); //Line 21 

System.out.println((2 + 4) * 9 - 3); // Line 22 

System.out.println(2 + (4 * 9) - 3); // Line 23 

System.out.println(2 + 4 * (9 - 3)); // Line 24 

System.out.println((2 + 4 * 9) - 3); // Line 25 

Which line of codes prints the highest number? 

A. Line 21 

B. Line 22 

C. Line 23 

D. Line 24 

E. Line 25 

Answer: B 

Explanation: The following is printed: 35 51 

35 

26 

35 

Q73. Given the code fragment: 

What is the result? 

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: B 

Q74. Given the code fragment 

int var1 = -5; 

int var2 = var1--; 

int var3 = 0; 

if (var2 < 0) { 

var3 = var2++; 

} else { 

var3 = --var2; 

} 

System.out.println(var3); 

What is the result? 

A. – 6 

B. – 4 

C. – 5 

D. 5 

E. 4 

F. Compilation fails 

Answer: C 

Q75. Given: 

class Cake { 

int model; 

String flavor; 

Cake() { 

model = 0; 

flavor = "Unknown"; 

} 

} 

public class Test { 

public static void main(String[] args) { 

Cake c = new Cake(); 

bake1(c); 

System.out.println(c.model + " " + c.flavor); 

bake2(c); 

System.out.println(c.model + " " + c.flavor); 

} 

public static Cake bake1(Cake c) { 

c.flavor = "Strawberry"; 

c.model = 1200; 

return c; 

} 

public static void bake2(Cake c) { 

c.flavor = "Chocolate"; 

c.model = 1230; 

return; 

} 

} 

What is the result? 

A. 0 unknown 0 unknown 

B. 1200 Strawberry 1200 Strawberry 

C. 1200 Strawberry 1230 Chocolate 

D. Compilation fails 

Answer: C 

Explanation: 1200 Strawberry 1230 Chocolate 

Replace 1z0-808 simulations:

Q76. Given: 

What is the result? 

A. A B C D 

B. A C D 

C. A B C 

D. A B D 

E. A B D C 

Answer: C 

Q77. Which two statements are true for a two-dimensional array of primitive data type? 

A. It cannot contain elements of different types. 

B. The length of each dimension must be the same. 

C. At the declaration time, the number of elements of the array in each dimension must be specified. 

D. All methods of the class object may be invoked on the two-dimensional array. 

Answer: C,D 

Explanation: http://stackoverflow.com/questions/12806739/is-an-array-a-primitive-type-or-an-object-or-something-else-entirely 

Q78. Given: 

public class Test { 

static boolean bVar; 

public static void main(String[] args) { 

boolean bVar1 = true; 

int count =8; 

do { 

System.out.println("Hello Java! " +count); 

if (count >= 7) { 

bVar1 = false; 

} 

} while (bVar != bVar1 && count > 4); 

count -= 2; 

} 

} 

What is the result? 

A. Hello Java! 8 Hello Java! 6 Hello Java! 4 

B. Hello Java! 8 Hello Java! 6 

C. Hello Java! 8 

D. Compilation fails 

Answer: C 

Explanation: Hello Java! 8 

Q79. Given: 

Which inserted at line 11, will provide the following output? 

[21, 15, 11] 

A. list.removelf(e > e%2 != 0); 

B. list.removelf(e -> e%2 != 0); 

C. Ust.removelf(e -> e%2 = 0); 

D. list.remove(e -> e%2 = 0); 

E. None of the above. 

Answer: C 

Explanation: 

In output we can see that only odd numbers present, so we need to remove only even numbers to get expected output. From Java SE 8, there is new method call removelf which takes predicate object and remove elements which satisfies predicate condition. Predicate has functional method call take object and check if the given condition met or not, if met it returns true, otherwise false. Option C we have passed correct lambda expression to check whether the number is odd or even that matches to the functional method of predicate interface. Option A is incorrect as it is invalid lambda expression. Option B is incorrect as it removes all odd numbers. Option D is incorrect as there is no remove method that takes predicate as argument. https://docs.oracle.eom/javase/8/docs/api/java/util/ArrayList.html 

Q80. Given: 

public class FieldInit { 

char c; 

boolean b; 

float f; 

void printAll() { 

System.out.println("c = " + c); 

System.out.println("c = " + b); 

System.out.println("c = " + f); 

} 

public static void main(String[] args) { 

FieldInit f = new FieldInit(); 

f.printAll(); 

} 

} 

What is the result? 

A. c = null 

b = false 

f = 0.0F 

B. c = 0 

b = false 

f = 0.0f 

C. c = null 

b = true 

f = 0.0 

D. c = 

b = false 

f = 0.0 

Answer: D