Q1) What is the o/p of following program? public class Widening1 { public void f1(Object o1) { System.out.println("Inside f1 with object as argument"); } public void f1(String s) { System.out.println("Inside f1 with String as argument"); } public static void main(String[] args) { new Widening1().f1(null); } } Answers a) Inside f1 with String as argument b) Inside f1 with object as argument c) Compilation error d) Runtime error

Q1) What is the o/p of following program? public class Widening1 { public void f1(Object o1) { System.out.println("Inside f1 with object as argument"); } public void f1(String s) { System.out.println("Inside f1 with String as argument"); } public static void main(String[] args) { new Widening1().f1(null); } } Answers a) Inside f1 with String as argument b) Inside f1 with object as argument c) Compilation error d) Runtime error

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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public class Course{String name;String dept;int number;public Course (String n, String d, int n){name = n;dept = d;number = n;}public String toString(){return "Course " + name + " in " + dept + " #: " + number;}public static void main (String [] args){Scanner in = new Scanner(System.in);add 10 lines using the scanner and saving them as strings The input for each line will be entered a String, a space, another String, and an int. Parse the input string into those three items and make an instance of Course. Add the new Course instance to a generic ArrayList of Course. print out each Course in the ArrayList.
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using System; class main { publicstaticvoid Main(string[] args) { Random r = new Random(); int randNo= r.Next(1,11); Console.Write("Hi, my name is Stevie. I am thinking of a number from 1 to 10.\nGuess which number I am thinking of? "); int guess = Convert.ToInt32(Console.ReadLine()); if (guess == randNo) { Console.WriteLine("You guessed correctly!"); } else { Console.WriteLine("I was thinking of the number "+randNo+"\nSorry! Play again."); } } } this is a guessing game program for a random number between 1-10 in C#. how can code be added to tell you if your guess is too high or too low from the chosen random number?
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using System;using System.Text.RegularExpressions;class chapter8 {static void Main() {string words = "08/14/57 46 02/25/59 45 06/05/85 18" +"03/12/88 16 09/09/90 13";string regExp1 = "(\\s\\d{2}\\s)";MatchCollection matchSet = Regex.Matches(words,regExp1);foreach (Match aMatch in matchSet)Console.WriteLine(aMatch.Groups[0].Captures[0]);}} Now let’s modify this program to search for dates instead of ages, and usea grouping construct to organize the dates. And write the c# code:
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JvExampleja 1 package com.beginnersbook 2 import java.util.Scamer; 3 public class JavaExomple 4 ( 16 17 18 19 ) public static void main(String args[]) ( } float p, r, t, sinterest; Scorner scon new Scanner(Systen, (e); System.out.print("Enter the Principal: "); pscan.nextFloat(); System.out.print("Enter the Rate of interest: "); scan.nextFloat(); System.out.print("Enter the Time period: "); tscan.nextFloat(); scon.close(); sinterest (1)/100; System.out.print("Simple Interest is: interest); Problems Declaration Console Progress Cover JavaExample Java Application Library/JavalavaVirtual Machines|ck-2. Enter the Principel: 2000 Enter the Rate of interest: Enter the Time period 3 Simple Interest is: 360.0 Jevado
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