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InputHandler.java
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InputHandler.java
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package tspSolver;
import java.io.File;
import java.io.FileNotFoundException;
import static java.lang.System.exit;
import java.util.ArrayList;
import java.util.Scanner;
public class InputHandler {
private String fileName;
private Scanner scanner;
private ArrayList<String> rowList;
private String line;
public InputHandler(String fileName) {
this.fileName = fileName;
rowList = new ArrayList<>();
readFile();
}
private void readFile(){
try {
scanner = new Scanner(new File(fileName));
} catch (FileNotFoundException e) {
System.out.println("Full path name should be provided. FileNotFoundException.\n");
exit(0); // exit method if file not found
}
// add null check here
if (scanner != null) {
while (scanner.hasNextLine()) {
line = scanner.nextLine();
if (!(line.charAt(0) == '#')) {
rowList.add(line);
}
}
}
}
public void printRowList(){
for (String s : rowList) {
System.out.println(s);
}
}
public ArrayList<String> getRowList() {
return rowList;
}
public void setRowList(ArrayList<String> rowList) {
this.rowList = rowList;
}
public String getFileName() {
return fileName;
}
public void setFileName(String fileName) {
this.fileName = fileName;
}
}