I need help. I dont know what to do next to get the following output:
groceries.csv: (file needed to input at command prompt (args))
Name, Number
natto, 3
eggs, 12
shiitake, 1
negi, 1
garlic, 5
umeboshi, 1
(need to output as shown below):
number of integers in file "groceries.csv" = 6
index = 0, element = 3
index = 1, element = 12
index = 2, element = 1
index = 3, element = 1
index = 4, element = 5
index = 5, element = 1
also:
Here is example output for input file electricity.txt: (attached .txt file)
number of integers in file "electricity.txt" = 4
index = 0, element = 1877
index = 1, element = 1923
index = 2, element = 1879
index = 3, element = 2000
import java.util.Scanner;
import java.io.File;
import java.util.StringTokenizer;
import java.util.InputMismatchException;
import java.io.FileNotFoundException;
public class KashiwabaraNicole3
{
/*******************************************************************************
* Outputs integers from user input external files.
********************************************************************************/
public static void main(String[] commandlineArguments) {
//Error Checking For Command Line Arguments..
if(commandlineArguments.length == 0){
System.out.println("Please enter the file name " +
"as the 1st commandline argument.");
}
else{
//connect to file (does NOT create new file)
for(int i=0; i<commandlineArguments.length; i++)
{System.out.println();
File file = new File(commandlineArguments);
Scanner inputFromFile = null;
try {
inputFromFile = new Scanner(file);
}
catch (FileNotFoundException exception) {
//Print error message.
//In order to print double quotes("),
//the escape sequence for double quotes (\") must be used.
System.out.print("ERROR: File not found for \"");
System.out.println(commandlineArguments[0]+"\"");
}
//if made connection to file, read from file
//keeps looping if file has more lines..
while (inputFromFile.hasNextLine()) {
//get a line of text..
String line = inputFromFile.nextLine();
}
String [] elementList = KashiwabaraNicole3test.createOutput(file);
KashiwabaraNicole3test.displayArray(elementList);
}//end of "if" for connecting to file
}//end of "else" for commandlineArguments
}//end of main() method
public static String [] createOutput (File myFile)
{
//need to declare "array"
Scanner scan = new Scanner(myFile);
try
{
Integer numOne = scan.nextInt();
for (int i=numOne;i<arraySize;i++)
{
array = array ;
}
}
catch(InputMismatchException exception)
{
}
return arraySize;
}
public static void displayArray(String [] anArray)
{
int num = 0;
Integer lengthOfArray = anArray.length;
System.out.println("number of intergers in file " + commandlineArguments + " = " + lengthOfArray);
for (int i = 0; i < lengthOfArray; index++)// Initialize the array values
{
Integer lengthOfArray = anArray.length();
System.out.println("index = " + num + " , element = " + anArray);
num++;
}
}
}
