CODEWITHSUNDEEP
javareturn
bringmethejava
bringmethejava

Reputation: 1

Return type error message

public class Key {

    public Encode() {
        StringBuffer passWord = new StringBuffer("bubbles");
        System.out.println("Original plain text:" + passWord);

        for (int i = 0; i < passWord.length(); i++) {
            int temp = 0;
            temp=(int)passWord.charAt(i);
            temp=  temp* 9;
            EncodedText = passWord.setCharAt(i , (char)temp);
            return EncodedText;
        }

        //return EncodedText;
    } 

}

Just writing a small program to encode (and decode) a small piece of text, but whenever I run it the same error message appears

"error: invalid method declaration; return type required public Encode() { " ^

Upvotes: 0

Views: 202

Answers (4)

Parkash Kumar
Parkash Kumar

Reputation: 4730

Also you are not following proper Java naming-convention. It should be like:

public returnType methodName(dataType parameter1, dataType parameter2){
}

e.g.

public int add(int a, int b){
   return a+b;
}

for naming convention standards, refer: http://java.about.com/od/javasyntax/a/nameconventions.htm

Upvotes: 0

Ross Drew
Ross Drew

Reputation: 8246

Your method has no return type. It needs this so that it knows what type of data it returns.

public <type goes here> Encode() {

This

EncodedText = passWord.setCharAt(i , (char)temp);

Doesn't make sense. EncodedText is a class, it needs an instance before you assign to it. Should maybe be

EncodedText variableName = passWord.setCharAt(i , (char)temp);

But is probably more like (I don't know without seeing that class)

EncodedText variableName = new EncodedText(passWord.setCharAt(i , (char)temp));

And this

return EncodedText;

Also doesn't make sense, this is trying to return a class, perhaps you meant to return the instance of the class

return variableName;

in which case, in the first error, you probably meant

public EncodedText Encode() {

Other than that, there are a few other errors I can't properly diagnose without seeing the EncodedText class. Errors like returning while in a loop that seems to be building an EncodedText object and lack of creation of said object.

Upvotes: 1

Dale22599
Dale22599

Reputation: 337

You need to put a return type (such as String, int, double, etc.), probably StringBuffer in this case, between the public and Encode(). Try doing public StringBuffer Encode() {...}

Upvotes: 0

Blub
Blub

Reputation: 3822

You have several errors here.

  1. Your method has no return type.
  2. EncodedText has no type.
  3. You don't want your return in the for loop, it makes the loop useless as it will return in the first iteration.
  4. setCharAt() has void as return type, you can not assign it to a variable.

Upvotes: 0

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