
Concept explainers
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;
class MyException extends Exception
{
public MyException(String NegativeArraySizeException)
{
System.out.println("The integer must be in between 1 and 20");
}
}
public class arrayTwo {
public static void main(String[]args){
Scanner keyboard = new Scanner(System.in);
System.out.println("How many integers do you have? (Max 20)");
int[] num = new int[keyboard.nextInt()];
if(num.length<=0 || num.length>20) {
System.out.println("You must enter a number in between 1 and 20");
}
else
for (int i = 0; i < num.length; i++) {
System.out.println("Enter element for subscript " + i);
num[i] = keyboard.nextInt();
}
System.out.println("Here are all of those numbers");
for (int i = 0; i < num.length; i++) {
System.out.println(num[i]);
}
}
}
attempted to use this code to fix the exception when a negative number is entered by the user, but it still gives back the exception. I would like to know how to amend it or how to restart it, if that's what it takes.

Trending nowThis is a popular solution!
Step by stepSolved in 2 steps

- Please help me using java. I am not understanding why I am getting errorsarrow_forwardI need help with this code !! import java.util.Arrays;import java.util.Scanner; public class MaxElement {public static void main(String[] args) { //create an object for Scanner class Scanner x = new Scanner (System.in);System.out.print ("Enter 10 integers: ");// create an arrayInteger[] arr = new Integer[10]; // Execute for loopfor (int i = 0; i < arr.length; i++) {//get the 10 integersarr[i] = x.nextInt(); } // Print the maximum numberSystem.out.print("The max number is = " + max(arr));System.out.print("\n"); } //max method public static <E extends Comparable<E>> E max(E[] arr) {E max = arr[0]; // Execute for loop for (int i = 1; i < arr.length; i++) { E element = arr[i];if (element.compareTo(max) > 0) {max = element;}}return max; }}arrow_forwardGiven string inputStr on one line and integers idx1 and idx2 on a second line, output "Match found" if the character at index idx1 of inputStr is equal to the character at index idx2. Otherwise, output "Match not found". End with a newline. Ex: If the input is: eerie 4 1 then the output is: Match found Note: Assume the length of string inputStr is greater than or equal to both idx1 and idx2.arrow_forward
- import java.util.Scanner; public class RomanNumerals { public static void main(String[] args) { Scanner in = new Scanner("I C X D M L"); char romanNumeral = in.next().charAt(0); System.out.println("Value: " + valueOf(romanNumeral) + " Expected: 1") ; romanNumeral = in.next().charAt(0); System.out.println("Value: " + valueOf(romanNumeral) + " Expected: 100") ; romanNumeral = in.next().charAt(0); System.out.println("Value: " + valueOf(romanNumeral) + " Expected: 10") ; romanNumeral = in.next().charAt(0); System.out.println("Value: " + valueOf(romanNumeral) + " Expected: 500") ; romanNumeral = in.next().charAt(0); System.out.println("Value: " + valueOf(romanNumeral) + " Expected: 1000") ; romanNumeral = in.next().charAt(0); System.out.println("Value: " + valueOf(romanNumeral) + " Expected: 50") ; } /** Gives the value…arrow_forwardHow do I match the output? Code: import java.io.File; import java.util.ArrayList; import java.util.Scanner; public class Assignment08 { public static void main(String[] args) throws Exception { File inputData = new File("input05.txt"); Scanner input = new Scanner(inputData); int totalNumber = input.nextInt(); Friend.friends = new Friend[totalNumber]; input.nextLine(); for (int i = 0; i < totalNumber; i++) { String name = input.nextLine(); String phone = input.nextLine(); String age = input.nextLine(); int ageNum = Integer.parseInt(age); Friend.friends[i] = new Friend(name, phone, ageNum); } printContacts(Friend.friends); Friend.showTotalFriendAge(); ManageDuplicate(Friend.friends); printContacts(Friend.friends); Friend.showTotalFriendAge(); } public static void printContacts(Friend[] contacts) {…arrow_forwardimport java.util.Scanner; public class CircleAndSphereWhileLoop{ public static final double MAX_RADIUS = 500.0; public static void main(String[] args) { Scanner in = new Scanner(System.in); // Step 2: Read a double value as radius using prompt // "Enter the radius (between 0.0 and 500.0, exclusive): " // Step 3: While the input radius is not in the ragne (0.0, 500.0) // Display a message on one line (ssuming input value -1) // "The input number -1.00 is out of range." // Read a double value as radius using the same promt double circumference = 2 * Math.PI * radius; double area = Math.PI * radius * radius; double surfaceArea = 4 * Math.PI * Math.pow(radius, 2); double volume = (4 / 3.0) * Math.PI * Math.pow(radius, 3); // Step 4: Display the radius, circle circumference, circle area, // sphere surface area, and…arrow_forward
- import java.util.Scanner;import java.util.InputMismatchException; public class LabProgram { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); /* Type your code here. */ }}arrow_forwardSolution question number 2arrow_forwardStringFun.java import java.util.Scanner; // Needed for the Scanner class 2 3 /** Add a class comment and @tags 4 5 */ 6 7 public class StringFun { /** * @param args not used 8 9 10 11 12 public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.print("Please enter your first name: "); 13 14 15 16 17 18 System.out.print("Please enter your last name: "); 19 20 21 //Output the welcome message with name 22 23 24 //Output the length of the name 25 26 27 //Output the username 28 29 30 //Output the initials 31 32 33 //Find and output the first name with switched characters 34 //All Done! } } 35 36 37arrow_forward
- import java.io.BufferedReader;import java.io.File;import java.io.FileReader;import java.util.Scanner;public class romeoJuliet {public static void main(String[]args) throws Exception{Scanner keyboard=new Scanner(System.in);System.out.println("Enter a filename");String fN=keyboard.nextLine();int wLC=0, lC=0;String sW= keyboard.nextLine();File file=new File(fN);String [] wordSent=null;FileReader fO=new FileReader(fN);BufferedReader buff= new BufferedReader(fO);String sent;while((sent=buff.readLine())!=null){if(sent.contains(sW)){wLC++;}lC++;}System.out.println(fN+" has "+lC+" lines");System.out.println("Enter some text");System.out.println(wLC+" line(s) contain \""+sW+"\"");fO.close();}} Need to adjust code so that it reads all of the words that it was tasked to find. for some reason it isn't finding all of the word locations in a text. for example the first question is to find "the" in romeo and juliet which should have 1137, but it's only picking up 1032?arrow_forwardpublic class RTExcept { public static void throwit () { System.out.print("throwit "); throw new RuntimeException(); } public static void main(String [] args) { try { System.out.print("hello "); throwit(); } catch (Exception re ) { System.out.print("caught "); } finally { System.out.print("finally "); } System.out.println("after "); }}. Complete?arrow_forward1. ArrayIndexOutOfBoundsException Given the following code: public class ExceptionTest{ public static void main( String[] args ){ String nums[] = {“one”, “two”, “three”}; for( int i=0; i<=3; i++ ){ System.out.println(nums[i]); } } } Compile and run the TestExceptions program. The output should look like this: one two three Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 3 at ExceptionTest.main(1.java:4) Modify the TestExceptions program to handle the exception. The output of the program after catching the exception should look like this: one two three Exception caught: Array Index 3 is out of boundsarrow_forward
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education





