Java: design problem with final-value and empty constructor
- by HH
$ javac InitInt.java
InitInt.java:7: variable right might not have been initialized
InitInt(){}
^
1 error
$ cat InitInt.java
import java.util.*;
import java.io.*;
public class InitInt {
private final int right;
// Design Problem?
// I feel the initialization problem is just due to bad style.
InitInt(){}
InitInt{
// Still the error, "may not be initialized"
// How to initialise it?
if(snippetBuilder.length()>(charwisePos+25)){
right=charwisePos+25;
}else{
right=snippetBuilder.length()-1;
}
}
public static void main(String[] args) {
InitInt test = new InitInt();
System.out.println(test.getRight());
}
public int getRight(){return right;}
}
Partial Solutions and Suggestions
use "this" to access methods in the class, instead of creating empty constructor
change final to non-final
with final field value: initialize all final values in every constructor
remove the empty constructor, keep your code simple and clean
