java.util.scanner

The point of this program is to remove certain sports teams and their members from a text file, then overwrite the original file with the new set of values. This is attempted by reading the values into an array, then looping through the array and deleting the name of the team and the next 2 lines but for some reason it stops going through the array after the index. I'm stuck, so any help would be great Code: private void RemoveSportsTeamButtonActionPerformed(java.awt.event.ActionEvent evt) { String ChosenTeam = ""; ChosenTeam = JOptionPane.showInputDialog("What Team Do you want to remove?");

public StormAnalysis(){ try { fScanner = new Scanner(new File("tracks1949to2010_epa.txt")); while(fScanner.hasNextLine()){ System.out.println(fScanner.nextLine()); } } catch (FileNotFoundException e) { System.out.println("File not found. Try placing the tracks1949to2010_epa.txt in the same folder as StormAnalysis.java"); e.printStackTrace(); } } The above is my code (and I also have an image of the error : http://folk.uio.no/arnabkd/test/images/error-code-task.jpg As you can see, the txt file is in the same folder as the StormAnalysis.java file. In addition, the code works if I change the file

When using a Scanner object to read from a textfile, I want it to skip over the very first line in the file. How would I do achieve this? Just use file.nextLine() before your while loop. This will skip the first line, as explained in the JavaDoc . And a note about your naming. The Java language has widely accepted conventions. Class Names always start with an upper case letter, and variable names always start with a lower case letter (except constants, but don't worry about that now). Read more here . Add the below code before the while loop to skip the first line. if(file.hasNext()==true) {

This question already has an answer here: java.util.NoSuchElementException - Scanner reading user input 2 answers I have really tried to find the answer through the threads but still hope to get some feed back. The code below is bad style I think but I don't know why it shoot me a java.util.NoSuchElementException after enter the number since I make two Scanner objects for two methods and I should be able to start a new input. And if I erase the input.close() in inputAndPrintNumber(), it works and compile correctly. I really hope to know why and how to fix it if I still use two Scanner obj and

This question already has an answer here: Scanner is skipping nextLine() after using next() or nextFoo()? 15 answers Scanner kb = new Scanner(System.in); System.out.println("Inserting L"); int L = kb.nextInt(); System.out.println("Inserting N"); int N = kb.nextInt(); System.out.println("Inserting x"); String x = kb.nextLine(); System.out.println(x); System.out.println("You inputed L,N,x"); Why is there no prompt for nextLine() in this code? dogbane Use: String x = kb.next(); instead of kb.nextLine() . This is because nextInt() reads just the number, not the end of line or anything after the

I have traced through this code and can't figure out how to fix it. When running the code why wouldn't the user be prompted for input rather than Java determining that there is no input? Error trace below. import java.util.*; public class SortAsInserted { public static void main(String[] args) { int array_size = GetArraySize(); //System.out.println(array_size); String[] myArray = new String[array_size]; for (int i = 0; i < array_size; i++){ String next_string = GetNextString(); System.out.println(next_string); } } //public static String[] SortInsert(String nextString){ //} public static int

This question already has an answer here: try/catch with InputMismatchException creates infinite loop 7 answers I keep getting my code caught in an infinite while loop. It is nothing to advanced, but i can not figure it out for the life of me! Someone Please help I have purplosely just re created the specific error without all of the if statements i have in my actual program. package bs; import java.util.InputMismatchException; import java.util.Scanner; public class bs { public static void main(String[] args) { Scanner sc = new Scanner(System.in); boolean continueVar = true; while (continueVar

when i run following code it shows error that scanner cannot be resolved to type. i checked that jre is installed and version is 1.7 what else do i need to check ? please help. public class student { String name; int rollno; public void get(String nm, int rno) { name=nm; rollno=rno; } public void display() { System.out.println("Name of student is :" +name); System.out.println("Roll no of student is :" +rollno); } public static void main(String args[]) { int i ; int r1; String n1; student obj[]= new student[10]; Scanner sc=new Scanner(System.in); for(i=0;i<10;i++) { obj[i]= new student(); } for