import java.io.*;

public class Week8Task2 {

    /**
     * .
     * @throws NullPointerException nullPointerEx.
     */
    public void nullPointerEx() throws NullPointerException {
        String value = null;
        int i = Integer.getInteger(value);
    }

    /**
     * .
     * @return nullPointerExpression.
     */
    public String nullPointerExpression(){
        try {
            nullPointerEx();
            return "Không có lỗi";
        } catch (NullPointerException ex) {
            return "Lỗi Null Pointer";
        }
    }

    /**
     * .
     * @throws ArithmeticException arithmeticEx.
     */
    public void arithmeticEx() throws ArithmeticException {
        int value = 10 / 0;
    }

    /**
     * .
     * @return arithmeticExpression.
     */
    public String arithmeticExpression() {
        try {
            arithmeticEx();
            return "Không có lỗi";
        } catch (ArithmeticException ex) {
            return "Lỗi Arithmetic";
        }
    }

    /**
     * .
     * @throws ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsEx.
     */
    public void arrayIndexOutOfBoundsEx() throws ArrayIndexOutOfBoundsException {
            String[] arr = new String[2];
            arr[10] = "1111";
    }

    /**
     * .
     * @return arrayIndexOutOfBoundsExpression.
     */
    public String arrayIndexOutOfBoundsExpression(){
        try {
            arrayIndexOutOfBoundsEx();
            return "Không có lỗi";
        } catch (ArrayIndexOutOfBoundsException ex) {
            return "Lỗi Array Index Out of Bounds";
        }
    }

    /**
     * .
     * @throws FileNotFoundException fileNotFoundEx.
     */
    public void fileNotFoundEx() throws FileNotFoundException {
        File file = new File("abc.txt");
        FileReader fileReader = new FileReader(file);
    }

    /**
     * .
     * @return fileNotFoundExpression.
     */
    public String fileNotFoundExpression() {
        try {
            fileNotFoundEx();
            return "Không có lỗi";
        } catch (FileNotFoundException ex) {
            return "Lỗi File Not Found";
        }
    }

    /**
     * .
     * @throws IOException ioEx.
     */
    public void ioEx() throws IOException {
        File file = new File("abc.txt");
        FileReader fileReader = new FileReader(file);
    }

    /**
     * .
     * @return ioExpression.
     */
    public String ioExpression() {
        try {
            ioEx();
            return "Không có lỗi";
        } catch (IOException ex) {
            return "Lỗi IO";
        }
    }

    public static void main(String[] args) {
//        Week8Task2 w = new Week8Task2();
//        System.out.println(w.arrayIndexOutOfBoundsExpression());
    }

}