Thread: Im having trouble storing ints that have been converted at the end of a line in a file into a 2d array.

Im having trouble storing ints that have been converted at the end of a line in a file into a 2d array.

Can Anyone Help me ??

the problems is i dont know how to store it
its keeping coming up null in the storing
also in the switch.

the strings have to be converted into ints depending on the rate of excellence.

the code is below

public void readMarksData(String fileName)throws FileNotFoundException
{
File dataFile = new File (fileName);
Scanner scanner = new Scanner(dataFile);

//System.out.println(scanner.nextLine());
cohortName = scanner.nextLine();
int responces = scanner.nextInt();
scanner.nextLine();
//int numberOfStudentResponses=scanner.nextInt();
//System.out.println("Number of Student Responces " + responces);

testMarks = new int [responces][10];
int num;


for(int add=0; add<8; add++)
{
Scanner scanner2 = new Scanner(scanner.nextLine()).useDelimiter("[ ]*(,)[ ]*");
for (int columns =0; columns<10; columns ++){
for(int i =0; i<4; i++){
switch(scanner2.next())
{
case "excellent": num=5; break;
case "very good": num=4; break;
case "good": num=3; break;
case "average": num=2; break;
case "poor": num=1; break;
default : num=0; break;
}
testMarks[add][columns+num] = scanner.nextInt();
}


}
scanner2.close();
scanner.close();
}


}

its in the for area that is more or less the problem
you can see in the posted image trouble.jpg

 
 
    public void readMarksData(String fileName)throws FileNotFoundException
    {      
        File dataFile = new File (fileName);
        Scanner scanner = new Scanner(dataFile);
 
        //System.out.println(scanner.nextLine());
        cohortName = scanner.nextLine();
        int responces = scanner.nextInt();
        scanner.nextLine();
        //int numberOfStudentResponses=scanner.nextInt();
        //System.out.println("Number of Student Responces " +  responces);
 
        testMarks = new int [responces][10];
        int num;
 
 
        for(int add=0; add<8; add++)
        {
            Scanner scanner2 = new Scanner(scanner.nextLine()).useDelimiter("[ ]*(,)[ ]*");
            for (int columns =0; columns<10; columns ++)
            {
                System.out.println();
                for(int i =0; i<4; i++)
                {
                    System.out.println();
                switch(scanner2.next())
                {
                    case "excellent": num=5; break;
                    case "very good": num=4; break;
                    case "good": num=3; break;
                    case "average": num=2; break;
                    case "poor": num=1; break;
                    default : num=0; break;
                }
                }
 
 
            }
            System.out.println();
            scanner2.close();
scanner.close();
 
 
 
    }
}

ive tried everything i could just post all the code from the class n ive put the print statements in nothing is happening its still the switch statement

its printing out the changed ints that works fine so its changing , but i dont know what to do now ive posted all my code in the file

it keeps coming out blank because of the switch statement parameter so it isnt printing anything

output.jpg

there is no out from it

 public void readMarksData(String fileName)throws FileNotFoundException
    {      
        File dataFile = new File (fileName);
        Scanner scanner = new Scanner(dataFile);
 
        //System.out.println(scanner.nextLine());
        cohortName = scanner.nextLine();
        int responces = scanner.nextInt();
        scanner.nextLine();
        //int numberOfStudentResponses=scanner.nextInt();
        //System.out.println("Number of Student Responces " +  responces);
 
        testMarks = new int [responces][10];
        int num;
 
 
        for(int add=0; add<8; add++)
        {
            Scanner scanner2 = new Scanner(scanner.nextLine()).useDelimiter("[ ]*(,)[ ]*");
            for (int columns =0; columns<10; columns ++)
            {
                for(int i =0; i<4; i++)
                {
                switch(scanner2.next())
                {
                    case "excellent": num=5; break;
                    case "very good": num=4; break;
                    case "good": num=3; break;
                    case "average": num=2; break;
                    case "poor": num=1; break;
                    default : num=0; break;
                }
 
 
                 System.out.println(num);
                }
 
 
            }
scanner2.close();
scanner.close();
 
 
 
    }
}

--- Update ---

this is printing out 10 0's but with the ints that were changed from strings

when does the delimiter come into use because i need to use it

could u show me what u mean kinda making it confusing ive only just started in sept thats why im having trouble
Scanner scanner2 = new Scanner(scanner.nextLine());
scanner2.useDelimiter("[ ]*(,)[ ]*");

testMarks[add][columns + num] = scanner.nextInt(); - still null , but prints out the first line of the file

i do need to use the delimiter tho to suit the file above tho
1. need to use the delimiter
2. i need to read in all the ints on the lines in the file and store them in the 2d array
3. i need to change the strings at the end of the line and store them in the 2d array
these are what i need to do

so how do i the other two , cz of the commas n etc they are the problem