Thread: missing return statement need help!!

 
/**
 * Write a description of class state here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
import java.util.*;
import java.io.*;
import java.util.Scanner;
public class state
{
public static Void main(String[]args) throws FileNotFoundException
{
 Scanner input = new Scanner (System.in);
 
 String s =" ";
 String[] data, category, option,option2,option3,option4;
 data =new String [50];
 category = new String[50];
 option = new String [50];
 option2 = new String [50];
 option3 = new String [50];
 option4 = new String [50];
 
 
 int [] choice, answer;
 choice = new int[50];
 answer = new int[50];
 
 
System.out.printf(" Welcome to Quiz Creator",s);
System.out.printf("What to do?",s);
System.out.printf("1]Specify number of question you want to do");
System.out.printf("2]Enter the question CATEGORY");
System.out.printf("3]Enter the QUESTION for each category");
System.out.printf("4]Enter the OPTION for each question");
System.out.printf("5]Provide the ANSWER for each question");
System.out.printf("6]Then your QUIZ GAME is ready to be play by your friend");
System.out.printf("Press any key to start the game..");
System.out.println();
input.nextLine();
 
 
       System.out.println("How many question you want to create:");
       choice[1]=input.nextInt();
       System.out.println();
       System.out.print('\u000C');
       input.nextLine();
       System.out.println("Please enter your question CATEGORY");
 
       for (int a=0; a<choice[1];a++){
           System.out.print(choice[2]+1+"]  ");
           data[a]=input.nextLine();
           choice[2]=choice [2] + 1;
        }
        System.out.print('\u000C');
        System.out.println();
        System.out.println("Please enter your Question");
 
        for (int  b=0; b<choice[1];b++){
 
            System.out.println();
            System.out.println(" Category: " + data[b]);
            System.out.printf(choice[3] + 1 +" ] ");
            category[b]=input.nextLine();
            choice[3]=choice[3]+ 1;
        }
        System.out.print('\u000C');
        System.out.println();
        System.out.println("Please enter your question option ");
 
        for (int c=0; c<choice[1];c++)
        {
            System.out.println();
            System.out.println("question : " + category [c]);
            System.out.println();
 
            System.out.printf("1]");
            option[c] = input.nextLine();
 
            System.out.printf("2]");
            option2[c] = input.nextLine();
 
            System.out.printf("3]");
            option3[c] = input.nextLine();
 
            System.out.printf("4]");
            option4[c] = input.nextLine();
 
            System.out.println();
            System.out.println("please set the answerto this question");
            System.out.print("the answer is ");
            answer[c]= input.nextInt();
            input.nextLine();
            System.out.println();
        }
        System.out.println("your quiz game is now ready...press the enter to start ");
        input.nextLine();
        System.out.print('\u000C');
 
        System.out.printf(" welcome to game quiz");
        System.out.printf("Game rule; 1] select 1 topic");
        System.out.printf("2] answer the mcq question");
        System.out.printf("3] each correct answer will given 10 point");
        System.out.printf("4] each incorrect answer will be deducted 10 point");
        System.out.printf("5] the game will be over once your answer the question wrongly");
        System.out.println();
        System.out.printf(" press the enter key to start the game...");
        input.nextLine();
        System.out.print('\u000C');
 
    }
}

missing return statement need help!!
Crosspost!

sorry i didnt know that if it was same web site or link to this one

It isn't, but you are wasting other people's time.
Just imagine you got a reply on the other site and a user here thinks about your problem to give you the same answer. It's inconsiderate and rude.

the coding was ok but the is an error on missing return statement ... at the end of coding.
i did try to delete or add "}" but i give the same error..
i didnt know if it was related to boolean because we havent learn about boolean in school.
errror 2.png

not yet....i search google about missing return statement. there alot of which make me confusing..

error 3.png

You don't seem to require a return statement for your code. You only have 1 method declared. I take it your using BlueJ. Just take a look at how you have declared your main method.

which part of my coding..

check over your code and make sure you have the basic outline for java typed out correctly. Remember that Java is case sensitive.

ok i try check my coding again...

--- Update ---

thnk for help..

the typing error of Void instead of void is the problem. Your code will compile when you change it (I have BlueJ and it compiles). I don't think I could have directly told you as I have a mark against me for spood feeding and wasn't sure if I could or not.

Originally Posted by Chris.Brown.SPE

Is informing someone about a typo really spoon feeding? I have no problem of changing future advise. The line between spoon feeding and wasting people's time due to stupid errors is hard to define.

Thanks for letting me know. I just wasn't sure and didn't want to take the chance.

 
/**
 * Write a description of class state here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
import java.util.*;
import java.io.*;
import java.util.Scanner;
public class state
{
    public static void main(String [] args)throws FileNotFoundException
    {
    Scanner input=new Scanner(System.in);
 
 
 String s =" ";
 String[] data, category, option,option2,option3,option4;
 data = new String [50];
 category = new String[50];
 option = new String [50];
 option2 = new String [50];
 option3 = new String [50];
 option4 = new String [50];
 int numq;
 
 
 
 
 int [] choice, answer;
 choice = new int[50];
 answer = new int[50];
 String in;
 
 
 
System.out.printf(" Welcome to Quiz",s);
System.out.printf("What to do?",s);
 
System.out.printf("1]Specify number of question you want to do");
 
System.out.printf("2]Enter the question CATEGORY");
 
System.out.printf("3]Enter the QUESTION for each category");
 
System.out.printf("4]Enter the OPTION for each question");
 
System.out.printf("5]Provide the ANSWER for each question");
 
System.out.printf("6]Then your QUIZ GAME is ready to be play by your friend");
 
System.out.printf("Press any key to start the game..");
System.out.println();
 
 
 
       System.out.println("How many question you want to create:");
       choice[1]=input.nextInt();
       System.out.println();
       System.out.print("\f");
       input.nextLine();
       System.out.println("Please enter your question CATEGORY");
 
       for (int a=0; a<choice[1];a++)
       {
           System.out.print(choice[2]+1+"]  ");
           data[a]=input.nextLine();
           choice[2]=choice [2] + 1;
        }
        System.out.print('\u000C');
        System.out.println();
        System.out.println("Please enter your Question");
 
        for (int  b=0; b<choice[1];b++)
        {
 
            System.out.println();
            System.out.println(" Category: " + data[b]);
            System.out.printf(choice[3] + 1 +" ] ");
            category[b]=input.nextLine();
            choice[3]=choice[3]+ 1;
        }
        System.out.print('\u000C');
        System.out.println();
        System.out.println("Please enter your question option ");
 
        for (int c=0; c<choice[1];c++)
        {
            System.out.println();
            System.out.println("question : " + category [c]);
            System.out.println();
 
            System.out.printf("1]");
            option[c] = input.nextLine();
 
            System.out.printf("2]");
            option2[c] = input.nextLine();
 
            System.out.printf("3]");
            option3[c] = input.nextLine();
 
            System.out.printf("4]");
            option4[c] = input.nextLine();
 
            System.out.println();
            System.out.println("please set the answerto this question");
            System.out.print("the answer is ");
            answer[c]= input.nextInt();
            input.nextLine();
            System.out.println();
        }
 
        System.out.println("your quiz game is now ready...press the enter to start ");
        input.nextLine();
        System.out.print('\u000C');
 
 
        System.out.println(" welcome to game quiz");
 
        System.out.println("Game rule; 1] select 1 topic");
 
        System.out.println("2] answer the mcq question");
 
        System.out.println("3] each correct answer will given 10 point");
 
        System.out.println("4] each incorrect answer will be deducted 10 point");
 
        System.out.println("5] the game will be over once your answer the question wrongly");
 
        System.out.println();
        System.out.printf(" press the enter key to start the game...");
        input.nextLine();
 
        System.out.print("\f");
 
 
 
int Scorepoint= 0;
int rounds =0;
 
 
 while(rounds < numberofquiz)
 {
 System.out.println("please select a Category.");
  System.out.println("Your current point is :" +Point);
  {
  for (int i=0; i <choice[1]; i++);
}
  int choice[2]=userInput.nextInt();
 
  System.out.println(question[pickcategory]);
  System.out.println("1]" + option1[pickcategory]); 
  System.out.println("2]" + option2[pickcategory]); 
  System.out.println("3]" + option3[pickcategory]); 
  System.out.println("4]" + option4[pickcategory]); 
  System.out.println("what is your answer");
  int playerans = userinput.nextInt();
 
  if (playerans =answer[pickcategory]
  {
      System.out.print("\f");
      System.out.println("your answer is correct");
      System.out.println("the answer is:" + answer[pickcategory];
      System.out.println();
      Scorepoint += 10;
      round += 1;
    }
    else
    {
     System.out.print("\f");
     System.out.println("your answer is incorrect.");
     System.out.println("the answer is :" + answer[pickcategory]);
     System.out.println();
     Scorepoint -=10;
     rounds = NumberofQuestion;
    }
 
    playerans =0;
    pickcategory = 0;
}
System.out.print("\f");
System.out.println("game Over");
System.out.println("your score:" + Scorepoint);
}
}

hi.. need help. here my full coding on game quiz i have a problem on( ']' expected) on bluej
here image:error 4.png

what it meant by " int cannot be dereferenced". i got this error.
error redo.jpg

ok..i try check again my coding..

incompatible types -found int but expected boolen.. i did not know what does this meant..
error 7.jpg

 
/**
 * Write a description of class state here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
import java.util.*;
import java.io.*;
import java.util.Scanner;
public class state
{
    public static void main(String [] args)throws FileNotFoundException
    {
    Scanner input=new Scanner(System.in);
 
 
 String s =" ";
 String[] data, category, option,option2,option3,option4;
 data = new String [50];
 category = new String[50];
 option = new String [50];
 option2 = new String [50];
 option3 = new String [50];
 option4 = new String [50];
 int numq;
 
 
 
 
 int [] choice, answer;
 choice = new int[50];
 answer = new int[50];
 String in;
 
 
 
System.out.printf(" Welcome to Quiz",s);
System.out.printf("What to do?",s);
 
System.out.printf("1]Specify number of question you want to do");
 
System.out.printf("2]Enter the question CATEGORY");
 
System.out.printf("3]Enter the QUESTION for each category");
 
System.out.printf("4]Enter the OPTION for each question");
 
System.out.printf("5]Provide the ANSWER for each question");
 
System.out.printf("6]Then your QUIZ GAME is ready to be play by your friend");
 
System.out.printf("Press any key to start the game..");
System.out.println();
 
 
 
       System.out.println("How many question you want to create:");
       choice[1]=input.nextInt();
       System.out.println();
       System.out.print("\f");
       input.nextLine();
       System.out.println("Please enter your question CATEGORY");
 
       for (int a=0; a<choice[1];a++)
       {
           System.out.print(choice[2]+1+"]  ");
           data[a]=input.nextLine();
           choice[2]=choice [2] + 1;
        }
        System.out.print('\u000C');
        System.out.println();
        System.out.println("Please enter your Question");
 
        for (int  b=0; b<choice[1];b++)
        {
 
            System.out.println();
            System.out.println(" Category: " + data[b]);
            System.out.printf(choice[3] + 1 +" ] ");
            category[b]=input.nextLine();
            choice[3]=choice[3]+ 1;
        }
        System.out.print('\u000C');
        System.out.println();
        System.out.println("Please enter your question option ");
 
        for (int c=0; c<choice[1];c++)
        {
            System.out.println();
            System.out.println("question : " + category [c]);
            System.out.println();
 
            System.out.printf("1]");
            option[c] = input.nextLine();
 
            System.out.printf("2]");
            option2[c] = input.nextLine();
 
            System.out.printf("3]");
            option3[c] = input.nextLine();
 
            System.out.printf("4]");
            option4[c] = input.nextLine();
 
            System.out.println();
            System.out.println("please set the answerto this question");
            System.out.print("the answer is ");
            answer[c]= input.nextInt();
            input.nextLine();
            System.out.println();
        }
 
        System.out.println("your quiz game is now ready...press the enter to start ");
        input.nextLine();
        System.out.print('\u000C');
 
 
        System.out.println(" welcome to game quiz");
 
        System.out.println("Game rule; 1] select 1 topic");
 
        System.out.println("2] answer the mcq question");
 
        System.out.println("3] each correct answer will given 10 point");
 
        System.out.println("4] each incorrect answer will be deducted 10 point");
 
        System.out.println("5] the game will be over once your answer the question wrongly");
 
        System.out.println();
        System.out.printf(" press the enter key to start the game...");
        input.nextLine();
 
        System.out.print("\f");
 
 
 
int Scorepoint= 0;
int rounds =0;
int c=50;
 
 
 while(rounds < choice[1])
 {
 System.out.println("please select a Category.");
  System.out.println("Your current point is :" +Scorepoint);
  {
  for (int i=0; i <choice[1]; i++);
}
  choice[2]=choice[1];
 
  System.out.println(data);
  System.out.println("1]" + option); 
  System.out.println("2]" + option2); 
  System.out.println("3]" + option3); 
  System.out.println("4]" + option4); 
  System.out.println("what is your answer");
  int playerans = choice[2];
 
  if (playerans = answer[c])
  {
      System.out.print("\f");
      System.out.println("your answer is correct");
      System.out.println("the answer is:" + answer[pickcategory]);
      System.out.println();
      Scorepoint += 10;
      round += 1;
    }
else
    {
     System.out.print("\f");
     System.out.println("your answer is incorrect.");
     System.out.println("the answer is :" + answer[pickcategory]);
     System.out.println();
     Scorepoint -=10;
     rounds = NumberofQuestion;
    }
 
    playerans =0;
    pickcategory = 0;
}
System.out.print("\f");
System.out.println("game Over");
System.out.println("your score:" + Scorepoint);
}
}

here my full coding on game quiz.

How can I post compiler error. Is it same like post java coding...or the different methods. .