Reding a file and storing the string as well as numeric value in array in specific format

**Neha Suryawanshi** · March 15th, 2013, 12:02 AM

I have a input file named file.txt with the contents
Zone
1.0 2.0 3.0
2.0 3.0 4.0
1.0 2.0 3.0
2.0 3.0 4.0
1.0 2.0 3.0
2.0 3.0 4.0
1.0 2.0 3.0
2.0 3.0 4.0
Zone
5.0 2.0 3.0
25.0 3.0 4.0
15.0 2.0 3.0
25.0 3.0 4.0
41.0 2.0 3.0
25.0 3.0 4.0
16.0 2.0 3.0
25.0 3.0 4.0
15.0 2.0 3.0
25.0 3.0 4.0
41.0 2.0 3.0
Zone
2.0 3.0 4.0
1.0 2.0 3.0
2.0 3.0 4.0
I am looking for a output like

I have a input file named file.txt with the contents

Zone
1.0 2.0 3.0
2.0 3.0 4.0
1.0 2.0 3.0
2.0 3.0 4.0
1.0 2.0 3.0
2.0 3.0 4.0
1.0 2.0 3.0
2.0 3.0 4.0
Zone
5.0 2.0 3.0
25.0 3.0 4.0
15.0 2.0 3.0
25.0 3.0 4.0
41.0 2.0 3.0
25.0 3.0 4.0
16.0 2.0 3.0
25.0 3.0 4.0

I am looking for a output like

zone=1
x=[1.0 2.0 1.0 2.0 1.0.......2.0 1.0]
similarly y=[]
z=[]
then
zone=2
x=[5.0 25.0 15 25 41 25 16 25]
similarly y=[]
z=[]

However, I am getting the values of x=[] for zone=2 from the starting of zone=1, as I am using x.add(scanner.nextDouble()).

Please help me. Thanks in advance.

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package boltcal1103;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.lang.String;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

/**
*
* @author admin
*/
public class ZoneFille14 {

public static void main(String[] args) throws FileNotFoundException {
List<String> s1=new ArrayList<String>();
List<Double> x = new ArrayList<Double>(); //Defining double arraylist for Fx
List<Double> y = new ArrayList<Double>(); //Defining double arraylist for Fy
List<Double> z = new ArrayList<Double>(); //Defining double arraylist for Fz
String word="Zone",line=null;
int count = 1;
double x1=0.0;
String s="Zone";
Scanner scanner = new Scanner(new FileReader("file.txt"));

while (scanner.hasNext())
{

line = scanner.next();

if (line.equals(word))
{
System.out.println("zone=:"+count);

for(int i = 0; i<8 ; i++)
{

x.add(scanner.nextDouble());
y.add(scanner.nextDouble());
z.add(scanner.nextDouble());

}

System.out.println(x);
System.out.println(y);
System.out.println(z);
count++;
}
}
scanner.close();

}

**Tamilarasi** · March 15th, 2013, 03:04 AM

Originally Posted by Neha Suryawanshi

I have a input file named file.txt with the contents

However, I am getting the values of x=[] for zone=2 from the starting of zone=1, as I am using x.add(scanner.nextDouble()).

yes you get all values of x=[] for zone=2 from the starting of zone=1.

Because you only create the list like below..

List<Double> x = new ArrayList<Double>(); //Defining double arraylist for Fx
List<Double> y = new ArrayList<Double>(); //Defining double arraylist for Fy
List<Double> z = new ArrayList<Double>(); //Defining double arraylist for Fz

but you need to clear the list inside the while loop that's like below..

while(condition){
// you clear the list like below..
x.clear();
y.clear();
z.clear();
//After you write your code here
}

Because every time the process enter the loop first clear the existing list and store the further values

I think you want this exactly.. I hope this will help to you...

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