AP Computer Science A

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New

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AP Computer Science A

Definition

The keyword "new" is used to create an instance of a class or to allocate memory for an object.

"New" also found in:

Subjects (1)

Operating Systems

Practice Questions (8)

What does the following code snippet create? Student alice = new Student("Alice", 18, 3.5);
What keyword is used to create a new object?
Given the following code: ``` class A { public static void show() { System.out.print("A"); } } class B extends A { public static void show() { System.out.print("B"); } } class C extends B { public static void show() { System.out.print("C"); } } ``` What will be the output when the following code is executed? ``` A obj1 = new C(); B obj2 = new C(); C obj3 = new C(); obj1.show(); obj2.show(); obj3.show(); ```
Given the following code: ``` class A { public void display() { System.out.print("A"); } } class B extends A { public void display() { System.out.print("B"); } } class C extends B { public void display() { System.out.print("C"); } } ``` What will be the output when the following code is executed? ``` B obj1 = new C(); C obj2 = new C(); A obj3 = new C(); obj1.display(); obj2.display(); obj3.display(); ```
Given the following code: ``` class A { public void show() { System.out.println("A"); } } class B extends A { public void show() { System.out.println("B"); } } class C extends B { public void show() { System.out.println("C"); } } ``` What will be the output when the following code is executed? ``` A obj = new C(); obj.show(); ```
Given the following code: ``` class A { public static void printMessage() { System.out.println("Hi from A"); } } class B extends A { public static void printMessage() { System.out.println("Hi from B"); } } ``` What will be the output when the following code is executed? ``` B obj = new B(); obj.printMessage(); ```
Given the following code: ``` class A { public void show() { System.out.println("A"); } } class B extends A { public void show() { System.out.println("B"); } } ``` What will be the output when the following code is executed? ``` A obj1 = new A(); B obj2 = new B(); A obj3 = new B(); obj1.show(); obj2.show(); obj3.show(); ```
What does the following code do? public static int[] codeBlock(ArrayList<Integer> arrayList) { int[] newArray = new int[arrayList.size()]; for (int i = 0; i < arrayList.size(); i++) { newArray[i] = arrayList.get(i); } return newArray; }

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New

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AP Computer Science A

Definition

"New" also found in:

Subjects (1)

Practice Questions (8)

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New

from class:

AP Computer Science A

Definition

Related terms

"New" also found in:

Subjects (1)

Practice Questions (8)

© 2024 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.

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