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3 years ago

Consider the following method:

Computers and Technology

2 answers:

Katen [24]3 years ago

8 0

Answer:

See explaination

Explanation:

public class Main {

public static void main(String[] args) {

//execution starts from here so initializing the try block for erros

try{

Scanner keyboard = new Scanner(System.in);

System.out.print("Please enter a file name: ");

String name = keyboard.next();

//the line below throws file not found exception if the given file name is not found or unable to open

Scanner file = new Scanner(new File(name));

String line = file.nextLine();

int n = file.nextInt();

//the below print line function call throws ParameterNotAllowedException if n is zero

printLine(line, n);

}//all Exceptions potentially thrown

catch(InputMismatchException e){

System.out.println("User input type mismatch\n"+e);

}catch(FileNotFoundException e){

System.out.println("Given file name is wrong or does not match");

}catch(ParameterNotAllowedException e){

System.out.println("The n given to printLine must be more than zero");

}catch(IOException ex){

System.err.println("An IOException was caught!");

}

//method from above goes here.

public static void printLine(String line, int numberOfTimes) throws Exception {

if (numberOfTimes <=0)

throw new ParameterNotAllowedException("Error. invalid parameter.",numberOFTimes);

for( int i=0; i<numberOfTimes; i++)

System.out.println(line);

}

For the user written custom Exception ParameterNotAllowedException. We need to add an exceptional class.

Which is missing from the given info:

class ParameterNotAllowedException extends Exception

{

public ParameterNotAllowedException(String s,int n)

{

// Call constructor of parent Exception

super(s);

}

belka [17]3 years ago

5 0

Answer:

Check the explanation

Explanation:

public class Main {

public static void main(String[] args) {

//execution starts from here so initializing the try block for errors

try{

Scanner keyboard = new Scanner(System.in);

System.out.print("Please enter a file name: ");

String name = keyboard.next();

//the line below throws file not found exception if the given file name is not found or unable to open

Scanner file = new Scanner(new File(name));

String line = file.nextLine();

int n = file.nextInt();

//the below print line function call throws ParameterNotAllowedException if n is zero

printLine(line, n);

}//all Exceptions potentially thrown

catch(InputMismatchException e){

System.out.println("User input type mismatch\n"+e);

}catch(FileNotFoundException e){

System.out.println("Given file name is wrong or does not match");

}catch(ParameterNotAllowedException e){

System.out.println("The n given to printLine must be more than zero");

}catch(IOException ex){

System.err.println("An IOException was caught!");

}

//method from above goes here.

public static void printLine(String line, int numberOfTimes) throws Exception {

if (numberOfTimes <=0)

throw new ParameterNotAllowedException("Error. invalid parameter.",numberOFTimes);

for( int i=0; i<numberOfTimes; i++)

System.out.println(line);

}

For the user written custom Exception ParameterNotAllowedException. We need to add an exceptional class.

Which is missing from the given info:

class ParameterNotAllowedException extends Exception

{

public ParameterNotAllowedException(String s,int n)

{

// Call constructor of parent Exception

super(s);

}

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masha68 [24]

Answer:

Check the explanation

Explanation:

#// do comment if any problem arises

//code

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for (int i = 0; i < 10; i++)

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kindly check the attached image below to see the Output:

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Answer:

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