Write And Read Via ArrayList With Text File?

Feb 6, 2015

I wanna learn to create a method where I use a scanner or any other way to input.The stuffs I input will be strings. The whole thing will be like a destination creator.So if I input the string USA, it will write this to a file:

1:USA

When I go to the method again the ID will be added so if I input UK, the file will contain:

1:USA
2:UK

Now if I terminate the program, next time when I run it again it will be able to read the ArrayList, so if I wanna go to the method again and write: Norway the file will contain:

1:USA
2:UK
3:Norway

Later I also want to be able to use println to show all of these lines from the file, as well I would like to be able to delete an ID, so if I delete ID 2 the file would contain:

1:USA
3:Norway

I'm quite new to Java, I'm in a Java course since soon 3 weeks back and I have sure learned a lot, all the loops and basic statements that exist in most languages, but now when it comes to this I just don't understand.

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what i did:.

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Java Code:

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[code]....

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[Code] .....

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[code]...

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try
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Oct 22, 2014

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Jul 27, 2014

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Mar 30, 2015

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Feb 15, 2015

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James Gosling 3 m 100
James Gosling 3 f 100
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Dennis Ritchie 5 f 100
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import java.io.*;
import java.util.*;

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3623161
3666669
3936293
3594955
3289867
2493998
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Example of output:
3623161
3666669
3936293
3594955
3289867
2493998
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* ^^this would be what it would look like when displayed in the GUI. But it would be colored. Anything that has 5 in a row ...My Class File:

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import java.awt.event.*;
import javax.swing.*;
import java.util.Scanner;
// File-related imports

[code]....

EX.
0=black(when there is no combo. of 5)1=blue(horizantal combo of 5)2=red(vertical combo of 5)3=green(right diagnol combo of 5)4=purple(left diagol combo of 5)

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try( BufferedReader br = new BufferedReader( new FileReader( jFileChooser1.getSelectedFile().getAbsolutePath() ) ) ) {
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[Code] ...

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Java Code:

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
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