21. Consider the following method:public static void sketch(int x1, int y1, int x2, int y2, int n)(if (n <= 0)Oelse(}drawLine(x1, y1, x2, y2);Assume that the screen looks like a Cartesian coordinatesystem with the origin at the center, and that drawLineconnects (x1,y1) to (x2,y2). Assume also that x1, y1, x2,and y2 are never too large or too small to cause errors.Which picture best represents the sketch drawn by themethod callint xm(x1 + x2 + y1 - y2) / 2;int ym (y1 + y2 + x2-x1) / 2;sketch(x1, y1, xm, ym, n - 1);sketch (xm, ym, x2, y2, n - 1);sketch(a, 0, -a, 0, 2)where a is a positive integer?(A)<-ay-ayaX(B)(D)-a-ay+-a-aa

Answered: Image /qna-images/answer/97b459d4-cc33-4a5a-98ac-f3ae7535a547.jpg

Answered: 21. Consider the following method:…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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public static void cheers(int n) {if (n <= 1) {System.out.println("Hurrah");}else {System.out.println("Hip");cheers(n-1);} } Consider the cheers method given above. What is the maximum number of "open" (i.e. incomplete) methods that results from calling cheers(3)? Explain your answer by tracing through the method.
16. Given the following method, what is the printout of the call nPrint("a", 2, 4) public static void nPrint(String message, int m, int n) { for (int i = 0; i < m; i++) { for (int j = 0; j < n; j++) { System.out.print(message); System.out.println(); Answer:
Complete the method definition to output the hours given minutes. Output for sample program: 3.5 public class HourToMinConv { publicvoidoutputMinutesAsHours(doubleorigMinutes) { publicstaticvoidoutputMinutesAsHours(doubleorigMinutes) { doubleorigMinutes=origMinutes / 60; //Convert minutes to hours } } publicstaticvoidmain (String [] args) { HourToMinConvtimeConv=newHourToMinConv(); // Will be run with 210.0, 3600.0, and 0.0. timeConv.outputMinutesAsHours(210.0); System.out.println(""); } }
Following programs contain syntax/logical errors. Underline the error and explain precisely the cause of the error to get any credit. Just underlining will not be given credit. [2.5x2=5] i. interface P{ void fun(int x) ; } ------------------------ class S implements P{ public void funny(){ System.out.print(“OOP is funny”); } public static void main(String args[]){ S s1 = new S(); s1.funny() } } ii. public class A{ int x; void A(int x) { this.x=x; System.out.println("in Class A"); } public static void main(String[] args){ new A(5); }
Given the following methods: public static int addNumPlusMore(int num1, int num2) { return num1 + num2 + 5; } public static int addNumPlusMore(int num1, int num2, int num3) { return num1 + num2 + num3 + 10; } int val = addNumPlusMore(5, 5); What would val be set to after the following statement: choose from this 5 20 10 15
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Consider the following piece of code. (The numbers on the left margin denote line numbers.) line# 01 public class funcRef { 02 private int n1, n2; public funcRef (int m1, int m2) {n1 = m1; n2 = m2;} 03 public static void funci (funcRef t) {t.n1 += 3;} public static void func2 (funcRef t) {t.n2 - 3;} public static void main (String [] args) { 04 05 -3= 06 07 funcRef t1, t2; t1 = new funcRef (30, 36); t2 = t1; 08 09 System.out.print (t2.n1); func1(t1); 10 11 System.out.print (t2.n1); System.out.print (t1.n2); func2(t1); 12 13 14 System.out.print (t1.n2); func2 (t2); System.out.print (t1.n2); func1(t2); 15 16 17 18 System.out.print (t2.n1); System.out.print (t1.n2); 19 20 21 return; 22 } 23
Number 5
Java- Consider this method declaration: void quiz(int i) { if (i > 1) { quiz(i/2); quiz(i/2); } system.out.print(“*”); } How many asterisks are printed by the method call quiz(4) ?
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PROBLEM STATEMENT: Return the String "odd" if the input is odd otherwisereturn "even". public class CheckForEven{public static String solution(int number){// ↓↓↓↓ your code goes here ↓↓↓↓return null;}} please get help with this Java Question

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