I want to know jave code.Help me to solve this...! наYour code should handle user input errors using loops. For example, if theyenter strings like “jane" when you are expecting an integer, you should tellthe user to enter the correct input. See sample outputs. Same applies fortotal number of people in the network.Hints• Math.abs() method• String's compareTo method• Scanner's hasNextInt() method• Use debugger and breakpoints to find array errorsSample Outputs--JGRASP exec: java SocialNetWhat is the total number of friends in the network:ffis an incorrect input! Please enter an integer.3Enter name:JackEnter name:JillEnter name:BobJack Jill BobJack 0 1 1Jill 1 0 1Bob1 1 0Total Friends Count:Jack 2Jill 2Bob2---JGRASP exec: java SocialNetWhat is the total number of friends in the network:2Enter name:CatEnter name:ZebraCatZebraCat0 0Zebra 0 0Total Friends Count:Cat 0Zebra 0 Social NetworkТopicsString Methods, for-loop, Array, 2-D ArrayProblemYou are intrigued by these social networking websites and want to know howthey work. You started with figuring out your school's social network. Youwant to know who is friends with who and how many friends each personhas. Write a program that shows a two dimensional array of friends whereeach element taking a value of either 1 or 0 representing whether the personat row i is friends with person at column j. Your program should also outputthe number of friends each person has.Procedure1. Ask the user to enter the total number of people in the network tocreate the 2-D array (There should be at least 1 person in the network).2. Store their names in a separate array3. We will decide whether one person is friends with another if theirnames' lexicographic difference is not greater than 124. Populate the 2-D array with 1 representing row i and column j beingfriends and 0 representing row i and column j not being friends5. You should assume that you are not friends with yourself, which meansthat ArrayOfFriends[i][j] = 0, where i = j6. Output the 2-D array to the screen (use only tabs for spacing)7. Also output the total number of friends each person has (calculateusing the 2-D Array).Error Handling

The Answer isSource code import java.util.Scanner; public class NetworkFriends { public static void main(String args[]) { String names[]=new String[1000];//declaring names array to store names of friends int friendsMatrix[][]=new int[1000][1000];//2d array to derive friendship between them int friendsCount[]=new int[100];//array to store th friends count String ch; boolean flag=false; boolean digitFlag=false; Scanner sc=new Scanner(System.in); System.out.println("What is the total number of friends in the network:");//reading the value of no of frined in network ch=sc.next(); while(!flag)//while to loop to validate the input given by user if not integer prompting user again to enter the input { for(int i=0;i<ch.length();i++) { if(!Character.isDigit(ch.charAt(i)))//if not an integer prompting the user to enter the input again and exiting the for loop { System.out.println(ch+" is an incorrect inout! please enter an integer"); ch=sc.next(); digitFlag=true; break; } else digitFlag=false; } if(digitFlag)//if not an digit contining the loop flag=false; else //exiting the loop entered value is an integer by setting the flag value to true { flag=true; } } int n=Integer.parseInt(ch); for(int i=0;i<n;i++) { System.out.println("Enter name"); names[i]=sc.next(); } for(int i=0;i<n;i++)//two for loops to generate 2d array { for(int j=0;j<n;j++) { if(i==j || names[i].compareTo(names[j])>12) friendsMatrix[i][j]=0; else friendsMatrix[i][j]=1; } } System.out.println("\t"); for(int i=0;i<n;i++) { System.out.print("\t"+names[i]); } System.out.print("\n"); for(int i=0;i<n;i++)//for loops to print 2d array { int count=0; System.out.print(names[i]); for(int j=0;j<n;j++) { System.out.print("\t"+friendsMatrix[i][j]); if(friendsMatrix[i][j]==1) count++;//incrementing count if they had a friendship } friendsCount[i]=count;//storing the count of friends per friend in friendscount array System.out.print("\n"); } System.out.println("Total Friends Count:"); for(int i=0;i<n;i++) System.out.println(names[i]+":"+friendsCount[i]); } } OUTPUT

Engineering

Computer Science

Your code should handle user input errors using loops. For example, if they enter strings like “jane" when you are expecting an integer, you should tell the user to enter the correct input. See sample outputs. Same applies for total number of people in the network. Hints • Math.abs() method

Your code should handle user input errors using loops. For example, if they enter strings like “jane" when you are expecting an integer, you should tell the user to enter the correct input. See sample outputs. Same applies for total number of people in the network. Hints • Math.abs() method

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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PLS NO AI GENERATED SOLUTIONS, THANKS A LOT..NO CHATGPT PLS...I'VE POSTED THE SAME QUESTION MULTIPLE TIMES, BUT I KEEP RECEIVING SOLUTIONS GENERATED BY CHATGPT. SOLUTIONS FROM CHATGPT AIN'T HELPFUL, THAT'S WHY I'M ASKING FOR HELP FROM HERE. PLEASE SOLVE THIS ONE WITHOUT USING ANY AI TOOL FOR A LIKE. For each of the following CFLs L, give a "direct" design of an NPDA (no solutions with CFG pls). i) L1 = {a^n b^m : 0 ≤ n ≤ m ≤ 3n} ii) L2 = {w ∈ {a, b}* : n_a (w) ≤ 3n_b(w)} (n_a means n subscript a and n_b means n subscript b)