java quiz

Authored by Giri A

Computers

University

Used 3+ times

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

Content View

Student View

10 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class Main {
    public static void main(String[] args) {
        int[] arr = {10, 20, 30, 40, 50};
        int index = 2;
        System.out.println(arr[index + 1]);
    }
}

Systax error

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class Main {
    public static void main(String[] args) {
        String str = “Hello, world!”;
        System.out.println(str.length());
    }
}

Undefined behavior

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class Main {
    public static void main(String[] args) {
        int[] Arr = new int[3];
        Arr[1] = 10;
        Arr[2] = 20;
        Arr = null;
        System.out.println(arr[2]);
    }
}

NullPointerException

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class Main {
    public static void main(String[] args) {
        int[] arr = new int[10];
          Arr = null;
        Arr[0] = 5;
        System.out.println(arr[0]);
    }
}
What will happen?

It will print 5.

It will print 0

It will throw a NullPointerException

It will cause a compilation error.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class Main {
    public static void main(String[] args) {
        int x = 5; // Binary: 0101
        x= x << 1;
        System.out.println(x);
    }
}

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class Main {
    static class Person {
        String name;
        int age;
        Person(String name, int age) {
            this.name = name;
            this.age = age;
        }
    }
    public static void main(String[] args) {
        Person[] persons = {new Person(“John”, 25), new Person(“Jane”, 30)};
        System.out.println(persons[1].age);
    }
}

persons[1].name

persons[0].age

persons[1].age

persons[0].name

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class Main {
    public static void main(String[] args) {
        int I = 0;
        while (I >= 0) {
            System.out.print(I + “ “);
        }
    }
}

The loop will terminate after one iteration

The loop will run forever.

The loop will run 0 iterations.

It will cause an exception

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

10 questions

Digital Tools

Quiz

•

University

10 questions

Analysis of Algorithms

Quiz

•

University

10 questions

python quiz

Quiz

•

6th Grade - Professio...

10 questions

TIU Quiz-4

Quiz

•

University

12 questions

Java History Characteristics Environment

Quiz

•

University

15 questions

Object Oriented Programming Assessment 1

Quiz

•

University

15 questions

Fundamentals of Algorithms - Unit 1 - Test 1

Quiz

•

University

15 questions

Quiz 1

Quiz

•

University

Popular Resources on Wayground

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

$fractions$

22 questions

fractions

Quiz

•

3rd Grade

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

15 questions

Equivalent Fractions

Quiz

•

4th Grade

20 questions

Figurative Language Review

Quiz

•

6th Grade

Discover more resources for Computers

30 questions

Quiz 1 Review

Quiz

•

University

java quiz

public class Main {
    public static void main(String[] args) {
        int[] arr = {10, 20, 30, 40, 50};
        int index = 2;
        System.out.println(arr[index + 1]);
    }
}

public class Main {
    public static void main(String[] args) {
        String str = “Hello, world!”;
        System.out.println(str.length());
    }
}

public class Main {
    public static void main(String[] args) {
        int[] Arr = new int[3];
        Arr[1] = 10;
        Arr[2] = 20;
        Arr = null;
        System.out.println(arr[2]);
    }
}

public class Main {
    public static void main(String[] args) {
        int[] arr = new int[10];
          Arr = null;
        Arr[0] = 5;
        System.out.println(arr[0]);
    }
}
What will happen?

public class Main {
    public static void main(String[] args) {
        int x = 5; // Binary: 0101
        x= x << 1;
        System.out.println(x);
    }
}

public class Main {
    public static void main(String[] args) {
        int I = 0;
        while (I >= 0) {
            System.out.print(I + “ “);
        }
    }
}

public class Main {
    public static void changeValue(int x) {
        x=10;
    }
    public static void main(String[] args) {
        int num = 5;
        changeValue(num);
        System.out.println(num);
    }
}

public class Main {
    public static void main(String[] args) {
        int x = 5;
        x = x ^ 3;
        System.out.println(x);
    }
}

public class Main {
    public static void func() {
        int x = 5;
        System.out.print(x + “ “);
        x++;
    }
    public static void main(String[] args) {
        func();
        func();
        func();
    }
}

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Computers

java quiz

public class Main { public static void main(String[] args) { int[] arr = {10, 20, 30, 40, 50}; int index = 2; System.out.println(arr[index + 1]); }}

public class Main { public static void main(String[] args) { String str = “Hello, world!”; System.out.println(str.length()); }}

public class Main { public static void main(String[] args) { int[] Arr = new int[3]; Arr[1] = 10; Arr[2] = 20; Arr = null; System.out.println(arr[2]); }}

public class Main { public static void main(String[] args) { int[] arr = new int[10]; Arr = null; Arr[0] = 5; System.out.println(arr[0]); }}What will happen?

public class Main { public static void main(String[] args) { int x = 5; // Binary: 0101 x= x << 1; System.out.println(x); }}

public class Main { static class Person { String name; int age; Person(String name, int age) { this.name = name; this.age = age; } } public static void main(String[] args) { Person[] persons = {new Person(“John”, 25), new Person(“Jane”, 30)}; System.out.println(persons[1].age); }}

public class Main { public static void main(String[] args) { int I = 0; while (I >= 0) { System.out.print(I + “ “); } }}

public class Main { public static void changeValue(int x) { x=10; } public static void main(String[] args) { int num = 5; changeValue(num); System.out.println(num); }}

public class Main { public static void main(String[] args) { int x = 5; x = x ^ 3; System.out.println(x); }}

public class Main { public static void func() { int x = 5; System.out.print(x + “ “); x++; } public static void main(String[] args) { func(); func(); func(); }}

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Computers

public class Main {
public static void main(String[] args) {
int[] arr = {10, 20, 30, 40, 50};
int index = 2;
System.out.println(arr[index + 1]);
}
}

public class Main {
public static void main(String[] args) {
String str = “Hello, world!”;
System.out.println(str.length());
}
}

public class Main {
public static void main(String[] args) {
int[] Arr = new int[3];
Arr[1] = 10;
Arr[2] = 20;
Arr = null;
System.out.println(arr[2]);
}
}

public class Main {
public static void main(String[] args) {
int[] arr = new int[10];
Arr = null;
Arr[0] = 5;
System.out.println(arr[0]);
}
}
What will happen?

public class Main {
public static void main(String[] args) {
int x = 5; // Binary: 0101
x= x << 1;
System.out.println(x);
}
}

public class Main {
static class Person {
String name;
int age;
Person(String name, int age) {
this.name = name;
this.age = age;
}
}
public static void main(String[] args) {
Person[] persons = {new Person(“John”, 25), new Person(“Jane”, 30)};
System.out.println(persons[1].age);
}
}

public class Main {
public static void main(String[] args) {
int I = 0;
while (I >= 0) {
System.out.print(I + “ “);
}
}
}

public class Main {
public static void changeValue(int x) {
x=10;
}
public static void main(String[] args) {
int num = 5;
changeValue(num);
System.out.println(num);
}
}

public class Main {
public static void main(String[] args) {
int x = 5;
x = x ^ 3;
System.out.println(x);
}
}

public class Main {
public static void func() {
int x = 5;
System.out.print(x + “ “);
x++;
}
public static void main(String[] args) {
func();
func();
func();
}
}