Question 1

Question ID: UK8295506

Given code of Test.java file:

package com.examtest.ocp;

public class Test {

public static void main(String[] args) {

String[] arr = { "L", "I", "V", "E" }; //Line n1

int i = -2;

if (i++ == -1) { //Line n2

arr[-(--i)] = "F"; //Line n3

} else if (--i == -2) { //Line n4

arr[-++i] = "O"; //Line n5

}

System.out.println(String.join("", arr)); //Line n6

}

What is the result?

Options :

A : Compilation error

B : An exception is thrown at runtime

C : LIVE

D :

LIFE

E : LIVO

F : LOVE

G : LIOE

Answer: A

Question 2

Given code of Test.java file:

package com.examtest.ocp;

public class Test {

private static String print(String... args) {

return String.join("-", args); //Line n1

}

private static Object print(Object... args) {

String str = "";

for(Object obj : args) {

if(obj instanceof String) { //Line n2

str += (String) obj; //Line n3

}

return str; //Line n4

}

public static void main(String... args) {

Object obj1 = new String("SPORT"); //Line n5

Object obj2 = new String("MAD"); //Line n6

System.out.println(print(obj1, obj2)); //Line n7

}

What is the result?

Options :

A : Line n1 causes compilation error

B :

Line n2 causes compilation error

C : Line n3 causes compilation error

D : Line n7 causes compilation error

E :

Code compiles successfully and on execution prints SPORTMAD on to the console

F : Code compiles successfully and on execution prints SPORT-MAD on to the console

G : An exception is thrown at runtime

Answer: A

Question 3

Question ID: UK8291961

Consider below statements:

1. int x = 5____0;

2. int y = ____50;

3. int z = 50____;

4. float f = 123.76_86f;

5. double d = 1_2_3_4;

How many statements are legal?

Options :

A : One statement only

B : Two statements only

C : Three statements only

D : Four statements only

E : All 5 statements

Answer: C

Question 4

Given:

Which two method invocation execute?

Options :

A : IFace myclassobj = new Myc ();

myclassObj.m3 ();

B : Ifnce.m3 ();

C : iFace mucloassObj = new Myc ();

myClassObj.m4();

D : new MyC() .m2 ();

E : IFace .,4():

F : IFace.m2();

Answer: D,E

Question 5

Question ID: UK8291525

Below is the code of TestSellable.java file:

package com.examtest.ocp;

interface Sellable {

double getPrice();

}

public class TestSellable {

private static void printPrice(Sellable sellable) {

System.out.println(sellable.getPrice());

}

public static void main(String[] args) {

/*INSERT*/

}

Which of the following options can replace /*INSERT*/ such that there are no compilation errors?

Choose 3 options.

Options :

A : printPrice(null);

B : printPrice(new Sellable());

C :

printPrice(new Sellable() {

});

D :

printPrice(new Sellable() {

@Override

public double getPrice() {

return 45.34;

}

});

E :

var obj = new Sellable() {

@Override

public double getPrice() {

return 20.21;

}

public Sellable getThisObject() {

return this;

}

};

printPrice(obj.getThisObject());

Answer: A,D

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