Answered: What is the ending value of y? int x;…

What is the ending value of y? int x; int y; x = 2; y = ((x + 1) / 5) + (x / 2) ; a. 1 b. 1.6 c. 4.5 d. Error: Division not possible JAVA

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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x = 3 + numbers[3]++; System.out.println(x); QUESTION 2: Class Rectangle has two data members, length (type of float) and width (type of float). The class Rectangle also has the following: //mutator methods void setlength (float len) } //B. length = len; H accessor methods float getLength() I return length; The following statement creates an array of Rectangle with size 2: Rectangle[] arrayRectangle= new Rectangle[2]; Is it correct if executing the following statements? What is the output? If it is not correct, write the correct one arrayRectangle. setLength (12.59); System.out.printin[rectangle Set.getLength()); arrayRectangle[1].setLength(4.15); System.out.println(arrayRectangle[1].getLength()): QUESTION 3: Use the following int array int[] numbers = { 42, 28, 36, 72, 17, 25, 81, 65, 23, 58} -Open file data.txt to write. to write the values of the array numbers to the file with the y numbers to get the values
def SomeMethod(a,b): a= a+b b=b+a print(a,b,end=" ") return (a+b) def main(): x=10 y=20 print(SomeMethod(x,y)) main() x and y are called: ? a and b are called: ?
for (int i = 1; i <= 3; i++) { for (int j = 1; j <= 3; j++) { System.out.print((i * j) + " "); }
%3D 0 = uns ju! int i = 0; while (i < 4) {sum = sum + i; { '++! System.out.print(i); what is the value of i ? Ob. 5 C. 4
2- Trace the following code and write the output: class Test1 { Test1(int x) { System.out.println("Test Calls " + x); class Test2 { Testi t1 = new Test1(10); Test2(int i) { t1 = new Test1(i); } public static void main(String[] args) { Test2 t2 = new Test2(5);
Q-2) Given the following code: class Calculation { int z, public void addition(int x, int y) { z = x + y; System.out.println("The sum of the given numbers:"+z); } public void Subtraction(int x, int y) { z = x-y; System.out.println("The difference between the given numbers:"+z); public class My_Calculation extends Calculation { public void multiplication(int x, int y) { z = x*y; System.out.println("The product of the given c) Give the output when this program is run: numbers:"+z); } public static void main(String args[]) { int a = 20, b = 10; } My Calculation demo = new My_Calculation(); demo.addition(a, b); demo.Subtraction(a, b); demo.multiplication(a, b); Complete the missing lines in a and b a) Name the superclass the subclass b) Suppose we wish to save the program in a text file My_Calculation. The extension should be d) Which objects (variables and methods) are inherited from the superclass? e) If you instantiate demo as Calculation demo = new My_Calculation(); in the main…