isames
asked on
Assigning variables to columns in a file
When displaying the contents of the credential file, I'm trying to apply each column of data to a variable. For example:
a = griffen.keyes
b = 108....
c = alphabet soup
d = zookeeper
The "c " variable it's not working correctly. Java is seeing this as two values despite the "".
How do I fix that?
Attached is a screenshot that I am reading from.
Below is my code so far.
package openCredFile;
import java.util.*;
import java.io.*;
public class TestingRandomMethods {
public static void main(String[] args)throws IOException{
TestingRandomMethods T = new TestingRandomMethods();
T.openFile();
T.readFile(); //The main method calls these methods and executes them. It's the readFile method that prints the info.
T.closeFile();
}
Scanner CredData; //Putting this outside of the method makes it available to all methods?
public void openFile() throws IOException { //I had an error until I added "throws IOException" when trying to open the file.
try{
CredData = new Scanner(new File("credentials.txt")); //Opens the file.
}
catch(Exception e){
System.out.println("Could not find file.");
}
}
public void readFile(){
while(CredData.hasNext()){ //will loop until it reaches the end of the file. hasNext means to read the entire file.
String a = CredData.next();
String b = CredData.next();
String c = CredData.next();
String d = CredData.next();
//String e = CredData.next();
//String f = CredData.next();
//System.out.printf("%s %s %s %s \n", a,b,c,d); //I put in the format and the variables that I want to print.
System.out.println(a);
System.out.println(b);
}
}
public void closeFile(){
CredData.close();
}
}
credentials.txt
a = griffen.keyes
b = 108....
c = alphabet soup
d = zookeeper
The "c " variable it's not working correctly. Java is seeing this as two values despite the "".
How do I fix that?
Attached is a screenshot that I am reading from.
Below is my code so far.
package openCredFile;
import java.util.*;
import java.io.*;
public class TestingRandomMethods {
public static void main(String[] args)throws IOException{
TestingRandomMethods T = new TestingRandomMethods();
T.openFile();
T.readFile(); //The main method calls these methods and executes them. It's the readFile method that prints the info.
T.closeFile();
}
Scanner CredData; //Putting this outside of the method makes it available to all methods?
public void openFile() throws IOException { //I had an error until I added "throws IOException" when trying to open the file.
try{
CredData = new Scanner(new File("credentials.txt")); //Opens the file.
}
catch(Exception e){
System.out.println("Could not find file.");
}
}
public void readFile(){
while(CredData.hasNext()){
String a = CredData.next();
String b = CredData.next();
String c = CredData.next();
String d = CredData.next();
//String e = CredData.next();
//String f = CredData.next();
//System.out.printf("%s %s %s %s \n", a,b,c,d); //I put in the format and the variables that I want to print.
System.out.println(a);
System.out.println(b);
}
}
public void closeFile(){
CredData.close();
}
}
credentials.txt
ASKER
I don't understand what you are talking about. I am just starting to learn Java. Can you elaborate for me?
ASKER
Ok. I get what you are saying, that's why I posed the question.
How do I make the compiler read "alphabet soup" in the doc as one token?
How do I make the compiler read "alphabet soup" in the doc as one token?
ASKER CERTIFIED SOLUTION
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>> credData as Java variable names begin lower case
Since you are just learning Java, I'd like to clarify that this is not a language rule but just a convention so that when code is passed from one developer to another, they will be able to pick up the code organization a little faster. Here is a link that gives more of the Code conventions.
https://www.oracle.com/technetwork/java/codeconventions-135099.html
Since you are just learning Java, I'd like to clarify that this is not a language rule but just a convention so that when code is passed from one developer to another, they will be able to pick up the code organization a little faster. Here is a link that gives more of the Code conventions.
https://www.oracle.com/technetwork/java/codeconventions-135099.html
ASKER
Thanks!!
:)
The only lines in that file with four tokens are the last two. The rest have five