What is printed, if any?class Rectangle (private int length, width;public Rectangle(int 1, int w) (length 1;width = w;public int getArea() {return length width;class Square exrtends Rectangle (Square(int length) {public class tester {public static void main(String[] args) {Rectangle r = new Square(4);System.out.printIn(r.getArea());Compilation error, Implicit constructor Square() is undefinedCompilation error, implicit super constructor Rectangle() is undefined16

The corrected code in Java (Netbeans) is as under: Comments are added for the reference. import…

Answered: Compilation error, Implicit constructor…

Compilation error, Implicit constructor Square() is undefined Compilation error, implicit super constructor Rectangle() is undefined

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Lab Goal : This lab was designed to teach you more about recursion. Lab Description : luckyThrees will return a count of the 3s in the number unless the 3 is at the start. A 3 at the start of the number does not count. /* luckyThrees will return the count of 3s in the number* unless the 3 is at the front and then it does not count* 3 would return 0* 31332 would return 2* 134523 would return 2* 3113 would return 1* 13331 would return 3* 777337777 would return 2* the solution to this problem must use recursion*/public static int luckyThrees( long number ){} Sample Data : 331332134523311313331777337777 Sample Output : 022132
When you move the pointer too quickly, a phenomena known as "submarining" might take place, in which the pointer vanishes.
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class Main { // this function will return the number elements in the given range public static int getCountInRange(int[] array, int lower, int upper) { int count = 0; // to count the numbers // this loop will count the numbers in the range for (int i = 0; i < array.length; i++) { // if element is in the range if (array[i] >= lower && array[i] <= upper) count++; } return count; } public static void main(String[] args) { // array int array[] = {1,2,3,4,5,6,7,8,9,0}; // ower and upper range int lower = 1, upper = 9; // throwing an exception…
2. Create one user object that invokes the default constructor.
A dynamic array is exactly as it sounds.
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