Thread: Java access to another method

String[] = Questions{};
String[] = Answers1{};
String[] = correctAnswers{};
 
public void onGuildMessageReceived(GuildMessageReceivedEvent event){
        String[] args = event.getMessage().getContentRaw().split("\\s+");
 
            if (args[0].equalsIgnoreCase(Quiz.prefix + "Question")){
 
                Random rnd = new Random();
                int randomnumber = rnd.nextInt(Questions.length);
 
 
 
                EmbedBuilder Question = new EmbedBuilder();
                Question.setTitle("📋 " + Questions[randomnumber]);
                Question.setDescription(Answers[randomnumber]);
                Question.setColor(0x00ff99);
 
                event.getChannel().sendTyping().queue();
                Message msg=event.getChannel().sendMessage(Question.build()).complete();
                msg.addReaction("🥇").queue();
                msg.addReaction("🥈").queue();
                msg.addReaction("🥉").queue();
                Question.clear();
 
 
        }
    }
 
public void onGuildMessageReactionAdd(GuildMessageReactionAddEvent event) {
     if(Answers1[randomnumber].equals(correctAnswers[randomnumber]){}
}

Hi i want to ask how to use int 'randomnumber' from method 'onGuildMessageReceived' to method 'onGuildMessageReactionAdd'
thanks for any answers

how to use int 'randomnumber'

Either declare it at the class level so all methods can see it
or pass it as an argument to the method.

Please edit your post and wrap your code with code tags:

[code]
**YOUR CODE GOES HERE**
[/code]

to get highlighting and preserve formatting.

i just edited post

What did you change? I do not see the code tags.

Ok. That looks better.
Did you try one of the solutions I suggested?

Which one do you want to do?

Make a declaration for that variable that is outside of any method but within the definition for the class.
Remove the variable's declaration from inside of the 'onGuildMessageReceived' method. The code in the 'onGuildMessageReceived' method should use the class level variable instead of a local variable (One defined inside of the method).

want use same value which is generated there in another method, is it possible?

Yes.
If a method stores a value in a class level variable, that value will be available to any method in the class until some method changes it to a new value.

That method has only local variables which means no other method can see their values. rrr and number are locally defined in the gene method.
Their values are not accessible outside of the gene method.

when i use gene() it will return me int number but when i call it again it wont be same value

Yes, that is how it is coded. Each call will get a new number. That is what the nextInt method does.

can i do it somehow?

What do you want the gene method to do? Please explain.

Originally Posted by Adam5981

String[] = Questions{};
String[] = Answers1{};
String[] = Answers2{};
String[] = Answers3{};
String[] = correctAnswers{};
 
public void onGuildMessageReceived(GuildMessageReceivedEvent event){
        String[] args = event.getMessage().getContentRaw().split("\\s+");
 
            if (args[0].equalsIgnoreCase(Quiz.prefix + "Question")){
 
                Random rnd = new Random();
                int randomnumber = rnd.nextInt(Questions.length);
 
 
 
                EmbedBuilder Question = new EmbedBuilder();
                Question.setTitle("📋 " + Questions[randomnumber]);
                Question.setDescription(Answers[randomnumber]);
                Question.setColor(0x00ff99);
 
                event.getChannel().sendTyping().queue();
                Message msg=event.getChannel().sendMessage(Question.build()).complete();
                msg.addReaction("🥇").queue();
                msg.addReaction("🥈").queue();
                msg.addReaction("🥉").queue();
                Question.clear();
 
 
        }
    }
 
public void onGuildMessageReactionAdd(GuildMessageReactionAddEvent event) {
        public void onGuildMessageReactionAdd(GuildMessageReactionAddEvent event) {
 
        if (event.getReactionEmote().getName().equals("🥇") && !event.getMember().getUser().equals(event.getJDA().getSelfUser())) {
            if (event.getMember().getUser().equals(event.getChannel().retrieveMessageById(event.getMessageId()).complete().getAuthor())) {
 
                event.getChannel().retrieveMessageById(event.getMessageId()).complete().delete().queue();
 
            } else if(Answers1[randomnumber].equals(correctAnswers[randomnumber])) {
 
                EmbedBuilder info = new EmbedBuilder();
                info.setTitle("Correct");
                info.setColor(0x03fc0f);
 
                event.getChannel().sendTyping().queue();
                event.getChannel().retrieveMessageById(event.getMessageId()).complete().getChannel().sendMessage(info.build()).queue();
                info.clear();
 
            }
        }else if (event.getReactionEmote().getName().equals("🥈") && !event.getMember().getUser().equals(event.getJDA().getSelfUser())) {
            if (event.getMember().getUser().equals(event.getChannel().retrieveMessageById(event.getMessageId()).complete().getAuthor())) {
 
                event.getChannel().retrieveMessageById(event.getMessageId()).complete().delete().queue();
 
            } else if(Answers2[randomnumber].equals(correctAnswers[randomnumber])){
                EmbedBuilder info = new EmbedBuilder();
                info.setTitle("Correct");
                info.setColor(0x03fc00);
 
                event.getChannel().sendTyping().queue();
                event.getChannel().retrieveMessageById(event.getMessageId()).complete().getChannel().sendMessage(info.build()).queue();
                info.clear();
 
            }
        }else if (event.getReactionEmote().getName().equals("🥉") && !event.getMember().getUser().equals(event.getJDA().getSelfUser())) {
            if (event.getMember().getUser().equals(event.getChannel().retrieveMessageById(event.getMessageId()).complete().getAuthor())) {
 
                event.getChannel().retrieveMessageById(event.getMessageId()).complete().delete().queue();
 
            } else if(Answers3[randomnumber].equals(correctAnswers[randomnumber])){
                EmbedBuilder info = new EmbedBuilder();
                info.setTitle("Správne");
                info.setColor(0x03fc01);
 
                event.getChannel().sendTyping().queue();
                event.getChannel().retrieveMessageById(event.getMessageId()).complete().getChannel().sendMessage(info.build()).queue();
                info.clear();
 
            }
        }
}

Hi i want to ask how to use int 'randomnumber' from method 'onGuildMessageReceived' to method 'onGuildMessageReactionAdd'
thanks for any answers

if you look to my program you see that i want to compare 2 arrays but i cant cuz i need index which is used in first method as randomnumber but java dont allow it to me.

this project should be QUIZ

Here is an example of how to declare a variable at the class level:

class Testing {
   int aClassLevelVar;   // declare a class level variable
 
  public void someMethod() {
     int aLocalVar = 1;           // declare local variable
     aClassLevelVar = 12; // assign a value to a class level variable
    ...
  }
  public void anotherMethod() {
     int aLocalVar = 2;   // declare a new local variable, nothing to do with other by same name
     ...
     int anotherLocalVar = aClassLevelVar + 1;  // use the class level variable's value
   }
}

Try declaring randomnumber as a class level variable.

i just updated my code

Where? Did you post the new version?

Does it work now?

int randomnumber dont work

Look at my post#18 to see how to code and use a class level variable.
Your code still declares randomnumber as local to the onGuildMessageReceived method.

Also see the tutorial: https://docs.oracle.com/javase/tutor...variables.html