1 class MetOv{2- void sum(int i, int j){3 System.out.println(i); }4 void sum(String c,String d){5 System.out.println(c+d); }6- void sum(double x,double y){7 System.out.println(x+y);8 }}910 - public class Run{11 public static void main(String[] args)12- {13 Metov a=new Metov ();14 a.sum("JA","VA");15 a.sum(5.0,10.e);4.1617 }}Answer:

when the parameters are Strings, they got added which means appended and result is printed when the…

class Metov{ void sum(int i, int j){ System.out.println(i); } void sum(String c,String d){ System.out.println(c+d); } void sum(double x,double y){ System.out.println(x+y); }} public class Run{ public static void main(String[ args) Metov anew Metov(); a.sum("JA", "VA"); a.sum(5.0,10.0);

class Metov{ void sum(int i, int j){ System.out.println(i); } void sum(String c,String d){ System.out.println(c+d); } void sum(double x,double y){ System.out.println(x+y); }} public class Run{ public static void main(String[ args) Metov anew Metov(); a.sum("JA", "VA"); a.sum(5.0,10.0);

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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1 public static int sum(int x, int y){ 2 int z = x +y; 3 return z; 4 } 5 public static void main(String[] args){ 6 … 7 sum(a+2, b); 8 … 9 } write the signature of the method sum: sum(int,int) *Method name/parameter list list local variables of sum: x, y, and y are local variables of the function. list the parameters of sum: int x, int y write the line number where a call to sum occurs 7 list the arguments for the above call list the return type of sum here ______________
What causes Strings to be immutable?
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AJ * New + Countdown.java 1 import java.util.Scanner; 2 3 public class Countdown 4- { 5 6- 7 8 9 10 12345678 19 20 11 19} 20 public static void main(String args) { // Start here } public static String countdown(int number) { } // Base case - return Blastoff! // Recursive call Submit + Continue Save Output Test Cases Docs Assignment Sample Outputs Enter starting number: 7 7 5 31 Blastoff! Grade For this exercise, you are going to write a recursive function that counts down by twos to a Blastoff! Enter starting number: 10 10 8 6 4 2 Blastoff! More Your recursive function will not actually print. It will return a String that can be printed from the main function. Each recursive call will add on to that string. In your main function, prompt the user for a starting value, then print the results.
import java.util.Scanner; public class LabProgram { // Recursive method to draw the triangle public static void drawTriangle(int baseLength, int currentLength) { if (currentLength <= 0) { return; // Base case: stop when currentLength is 0 or negative } // Calculate the number of spaces needed for formatting int spaces = (baseLength - currentLength) / 2; if (currentLength == baseLength) { // If it's the first line, don't output spaces before the first '*' System.out.println("*".repeat(currentLength) + " "); } else { // Output spaces and asterisks System.out.println(" ".repeat(spaces) + "*".repeat(currentLength) + " "); } // Recursively call drawTriangle with the reduced currentLength drawTriangle(baseLength, currentLength - 2); } public static void drawTriangle(int baseLength) { drawTriangle(baseLength, baseLength); } public static…