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Trouble opening text file [closed]

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I have some trouble reading a file. I have my input.txt in contents package, but the program still can't open the file.
String line = null;
try{
//loen faili
FileReader fileReader = new FileReader("contents/input.txt");
BufferedReader buffReader = new BufferedReader(fileReader);
while((line = buffReader.readLine()) != null){
System.out.println(line);
}
buffReader.close();
}catch(FileNotFoundException ex){
System.out.println("Error opening file");
}catch(IOException ex){
System.out.println("Error reading file");
}

Because you need to differnetly open files from your app packages than the one from disk, try:
InputStream is = getClass().getClassLoader().getResourceAsStream("contents/input.txt");

How would I open a .txt file within a jar file? Using Java? [closed]

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the line of code I'm using is: InputStream is = game.class.getResourceAsStream("testing.txt"); but when I read the file it outputs null, however in the file there is the word "test", but when I run the program it still returns null, Help please :D
The code I am using is:
package Code;
import java.io.InputStream;
public class game {
public static void main(String[] args) {
InputStream is = game.class.getResourceAsStream("/testing.txt");
System.out.println(is);
}

I'm still unsure about your directory structure but this should work
public class game {
public static void main(String[] args) {
try{
InputStream is = game.class.getResourceAsStream("/testing.txt");
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
System.out.println(reader.readLine());
} catch( IOException e){
}
}
}

How do I save the results of a calculation to a .txt file in java [closed]

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Closed 9 years ago.
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Say I did a calculation:
1000 * 2000
How would I print the results of that calculation to a .txt file?

You can use the PrintWriter class. Something like:
PrintWriter w = new PrintWriter("filename.txt", "UTF-8");
w.println(calculation);
This will create a new file with the specified name, or it will overwrite one if it already exists.

I think your have trouble with variable types. Convert the Int to String. I haven't tried the code.
Integer.toString(1000 * 2000);

public static void saveAs() throws IOException {
System.out.println("Type In The New File Name"); //FILE NAME CHOICE
Scanner fileChoice = new Scanner(System.in); //this scans userinput
String newFile; //this is userinput
newFile = fileChoice.nextLine(); //whatever they type is stored in this var
File fileWriter = new File(newFile); //opens a new file
PrintWriter writeNew = new PrintWriter(new FileWriter(newFile, true)); //writes to it
writeNew.println("TEXT HERE BLAH") //writes the text to that file
writeNew.close(); //and dont forget to close
when the userinput will ask you for file name SPECIFY IT IS .TXT eg. type in hello.txt
problemsolved-

Eclipse, android app[How TO] open TXT file [CODE]? [closed]

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i want Some Code for eclipse to open file from internal storage, from Root directory and from system location.
can anyone help me?
thanks

The below lines may be what you wanted.
public static String readFromFile(String filePath){
String total="";
File file=new File(filePath);
try {
String encoding="GBK";
if(file.isFile() && file.exists()){ //判断文件是否存在
InputStreamReader read = new InputStreamReader(
new FileInputStream(file),encoding);//考虑到汉子编码格式
BufferedReader bufferedReader = new BufferedReader(read);
String lineTxt = null;
while((lineTxt = bufferedReader.readLine()) != null){
total+=lineTxt;
}
read.close();
}else if(!file.exists())
{
file.createNewFile();
}
} catch (Exception e) {
System.out.println("读取文件内容出错");
e.printStackTrace();
}
return total;
}

How to put a text file into a string array? [closed]

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Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Closed 9 years ago.
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I have a short story with a couple of sentences and I have to transfer that to a string array.

Please refer to this article:
http://www.mkyong.com/java/how-to-read-file-from-java-bufferedreader-example/
specifically:
BufferedReader br = null;
try {
String sCurrentLine;
br = new BufferedReader(new FileReader("C:\\testing.txt"));
while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
}
} catch (IOException e) {
e.printStackTrace();
}