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Q51. Given: 

What is the result? 

A. 10 20 30 40 

B. 0 0 30 40 

C. Compilation fails 

D. An exception is thrown at runtime 

Answer:


Q52. Given: 

public class Painting { 

private String type; 

public String getType() { 

return type; 

public void setType(String type) { 

this.type = type; 

public static void main(String[] args) { 

Painting obj1 = new Painting(); 

Painting obj2 = new Painting(); 

obj1.setType(null); 

obj2.setType("Fresco"); 

System.out.print(obj1.getType() + " : " + obj2.getType()); 

What is the result? 

A. : Fresco 

B. null : Fresco 

C. Fresco : Fresco 

D. A NullPointerException is thrown at runtime 

Answer:


Q53. 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:

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 


Q54. 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:


Q55. Given: 

And the commands: 

Javac Test.java 

Java Test 12345 

What is the result? 

A. Number us : 12345 

B. A NullPointerException is thrown at runtime 

C. A NumberFormatException is thrown at runtime 

D. AnArrayIndexOutOfBoundException is thrown at runtime. 

Answer:


Refresh 1z0-808 test engine:

Q56. Given: 

What is the result? 

A. 3 4 5 6 

B. 3 4 3 6 

C. 5 4 5 6 

D. 3 6 4 6 

Answer:


Q57. Given the code fragment: 

What is the result? 

A. 20 

B. 25 

C. 29 

D. Compilation fails 

E. AnArrayIndexOutOfBoundsException is thrown at runtime 

Answer:


Q58. Given: 

import java.util.*; 

public class Ref { 

public static void main(String[] args) { 

StringBuilder s1 = new StringBuilder("Hello Java!"); 

String s2 = s1.toString(); 

List<String> lst = new ArrayList<String>(); 

lst.add(s2); 

System.out.println(s1.getClass()); 

System.out.println(s2.getClass()); 

System.out.println(lst.getClass()); 

What is the result? 

A. class java.lang.String class java.lang.String class java.util.ArrayList 

B. class java.lang.Object class java.lang. Object class java.util.Collection 

C. class java.lang.StringBuilder class java.lang.String class java.util.ArrayList 

D. class java.lang.StringBuilder class java.lang.String class java.util.List 

Answer:

Explanation: class java.lang.StringBuilder class java.lang.String class java.util.ArrayList 


Q59. Given: 

package p1; 

public class Test { 

static double dvalue; 

static Test ref; 

public static void main(String[] args) { 

System.out.println(ref); 

System.out.println(dvalue); 

What is the result? 

A. p1.Test.class 

0.0 

B. <the summary address refrenced by ref> 0.000000 

C. Null 

0.0 

D. Compilation fails 

E. A NullPointerException is thrown at runtime 

Answer:


Q60. Given: 

What is the result? 

A. Compilation fails 

B. The code compiles, but does not execute. 

C. Paildrome 

D. Wow 

E. Mom 

Answer: