AD_Java Basics

Professional Development

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14 Qs

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AD_Java Basics

Quiz

•

Computers

•

Professional Development

•

Practice Problem

•

Hard

ARTHI C1514

Used 1+ times

FREE Resource

14 questions

Show all answers

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Predict the output
int x = 10;
if (x = 20) {
System.out.println("True");
} else {
System.out.println("False");
}

True

False

Compilation Error

Runtime error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

for (int i = 0; i < 5; i++);
{
System.out.println("Hello");
}
How many times does "Hello" print?

0 times

1 time

5 times

Compilation error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Predict the output:
public class Test {
static public void main(String[] args) {
System.out.println("Executed");
}
}

Error – Invalid main method

Executes and prints "Executed"

Error – Missing return type

JVM throws exception

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Predict the output:
public class Demo {
public static void main(String args) {
System.out.println("Run");
}
}

Prints "Run"

Compilation error

Runs but no output

JVM error: main method not found

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Predict the output:
class A {
int x = 10;
}
class B extends A {
int x = 20;
}
public class Test {
public static void main(String[] args) {
A obj = new B();
System.out.println(obj.x);
}
}

Compilation error

Runtime error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Predict the output:
class Parent {
private void show() {
System.out.println("Parent");
}
}
class Child extends Parent {
void show() {
System.out.println("Child");
}
}
public class Main {
public static void main(String[] args) {
Parent p = new Child();
p.show();
}
}

Prints "Child"

Prints "Parent"

Compilation error

Runtime error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Predict the output:
int arr[] = new int[5];
System.out.println(arr[0]);

Garbage value

Compilation error

Runtime error

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AD_Java Basics

14 questions

Predict the output
int x = 10;
if (x = 20) {
System.out.println("True");
} else {
System.out.println("False");
}

for (int i = 0; i < 5; i++);
{
System.out.println("Hello");
}
How many times does "Hello" print?

Predict the output:
public class Test {
static public void main(String[] args) {
System.out.println("Executed");
}
}

Predict the output:
public class Demo {
public static void main(String args) {
System.out.println("Run");
}
}

Predict the output:
class A {
int x = 10;
}
class B extends A {
int x = 20;
}
public class Test {
public static void main(String[] args) {
A obj = new B();
System.out.println(obj.x);
}
}

Predict the output:
class Parent {
private void show() {
System.out.println("Parent");
}
}
class Child extends Parent {
void show() {
System.out.println("Child");
}
}
public class Main {
public static void main(String[] args) {
Parent p = new Child();
p.show();
}
}

Predict the output:
int arr[] = new int[5];
System.out.println(arr[0]);

Predict the output:
int arr[] = new int[3];
arr[0] = 10;
arr[1] = 20;
arr[2] = 30;
arr[3] = 40;
System.out.println(arr[3]);

Debug if any error:
final class Base { }
class Derived extends Base { }

static main(String[] args)

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AD_Java Basics

14 questions

Predict the outputint x = 10;if (x = 20) { System.out.println("True");} else { System.out.println("False");}

for (int i = 0; i < 5; i++); { System.out.println("Hello");}How many times does "Hello" print?

Predict the output:public class Test { static public void main(String[] args) { System.out.println("Executed"); }}

Predict the output:public class Demo { public static void main(String args) { System.out.println("Run"); }}

Predict the output:class A { int x = 10;}class B extends A { int x = 20;}public class Test { public static void main(String[] args) { A obj = new B(); System.out.println(obj.x); }}

Predict the output:class Parent { private void show() { System.out.println("Parent"); }}class Child extends Parent { void show() { System.out.println("Child"); }}public class Main { public static void main(String[] args) { Parent p = new Child(); p.show(); }}

Predict the output:int arr[] = new int[5];System.out.println(arr[0]);

Predict the output:int arr[] = new int[3];arr[0] = 10;arr[1] = 20;arr[2] = 30;arr[3] = 40;System.out.println(arr[3]);

Debug if any error:final class Base { }class Derived extends Base { }

________ static ________ main(String[] args)

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Similar Resources on Wayground

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Discover more resources for Computers

Predict the output
int x = 10;
if (x = 20) {
System.out.println("True");
} else {
System.out.println("False");
}

for (int i = 0; i < 5; i++);
{
System.out.println("Hello");
}
How many times does "Hello" print?

Predict the output:
public class Test {
static public void main(String[] args) {
System.out.println("Executed");
}
}

Predict the output:
public class Demo {
public static void main(String args) {
System.out.println("Run");
}
}

Predict the output:
class A {
int x = 10;
}
class B extends A {
int x = 20;
}
public class Test {
public static void main(String[] args) {
A obj = new B();
System.out.println(obj.x);
}
}

Predict the output:
class Parent {
private void show() {
System.out.println("Parent");
}
}
class Child extends Parent {
void show() {
System.out.println("Child");
}
}
public class Main {
public static void main(String[] args) {
Parent p = new Child();
p.show();
}
}

Predict the output:
int arr[] = new int[5];
System.out.println(arr[0]);

Predict the output:
int arr[] = new int[3];
arr[0] = 10;
arr[1] = 20;
arr[2] = 30;
arr[3] = 40;
System.out.println(arr[3]);

Debug if any error:
final class Base { }
class Derived extends Base { }

static main(String[] args)