A loc-cs.org/~chu/DataStructures/H19Special Hint for Taking User's Inputimport java.util.Scanner;/*** This is an example to show you that* the method nextInt() only flushes the number to the variable* and leave the "END OF LINE" symbol in the input buffer.* If you have next input looking for "END OF LINE",the system will not wait for user's input andjust take the "END OF LINE" symbol from input buffer.* So, the solution is flush "END OF LINE" out before you大* expect an input from user.* @author Valerie Chu* @version August 24, 2020*/public class Example{public static void main(String[] args){Scanner input = new Scanner (System.in);String [] item = new String[2];int (] num = new int[2];for (int i=0; i<2; i++){System.out.println("Which item are you shopping for?");item[i] =input.nextLine();System.out.printf("How many \"%s\" do you need?\n", item[i]);num[i] = input.nextInt();input.nextLine();//Flush the "END OF LINE" symbol outSystem.out.printf("%15s%10s\n", "Item", "Quantity");for (int i=0; i<2; i++){System.out.printf("%15s%10d\n",item[i],num[i]);You can copy the program below to test it.import java.util.Scanner;public class Example{public static void main(String[] args){Scanner input = new Scanner(System.in);String [] item =int [] num = new int[2];for(int i=0; i<2; i++){System.out.println("Which item are you shopping for?");item[i]System.out.printf("How many \"%s\" do you need?\n", item[i]);num[i] =input.nextLine();}System.out.printf("%15s%10s\n", "Item", "Quantity");for (int i=0; i<2; i++){System.out.printf("%15s%1od\n",item[i], num[i]);new String[2];input.nextLine();input.nextInt();//Flush the "END OF LINE" symbol out}}} A loc-cs.org/~chu/DataStructures/H19Review LoopsWrite a java program to ask three peoplethree questions about name, number ofcourses, and number of credit hours.Also, print result in columns as below.A Bluel: Terminal Window - COSI223OptionsWhat is your name?Valerie ChuHow many classes do you take this semester?In terms of 5 classes, how many credit hours are you taking?13What is your name?Tom AndersonHow many classes do you take this semester?6.In terms of 6 classes, how many credit hours are you taking?16What is your name?Casey BloomingHow many classes do you take this semester?4In terms of 4 classes, how many credit hours are you taking?12NameNumber of ClassesTotal Credit HoursValerie Chu513Tom AndersonCasey Blooming16412Note: the input.nextInt() method readsonly the integer value from input buffer.The "\n" is still staying in the input buffer. Ifyou continue reading withinput.nextLine(),you will receive the "\n" and CPU will notwait for any input. To fix this problem, youaddthe statement input.nextLine() to flushout the "\n" from the input buffer.Click here for an example.

import java.util.Scanner; //Importing Scanner class to take input from the userpublic class Main…

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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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Computer Science For each of the code snippet given below, identify the error and then write code after fixing the error. Given code is the simulation of grep -v command. -v prints all lines that do not match a specific pattern. void grep_inverse(char *filename, char *str) { FILE *fp; char buf[buff_size]; fp = fopen(filename, "r"); if(!fp) { perror(filename); } else { while (fgets(buf, buff_size, fp) != NULL) { if ((strstr (buf, str)) != NULL) printf("%s", buf); } } fclose(fp); }
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I just need help creating this Java code as described below in the image: import java.util.Scanner;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.PrintWriter;import java.io.IOException; public class LabProgram { public static void main(String[] args) throws IOException { Scanner scnr = new Scanner(System.in); /* TODO: Declare any necessary variables here. */ /* TODO: Read a file name from the user and read the tsv file here. */ /* TODO: Compute student grades and exam averages, then output results to a text file here. */ }}
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Review Loops Write a java program to ask three people three questions about name, number of courses, and number of credit hours. Also, print result in columns as below.