Consider the following code segment in the class test.java: import java.io.IOExc

Question

Consider the following code segment in the class test.java: import java.io.IOException; import java.io.File: import java.util.Scanner; public class Test { public static void main(String[] args) { String stringRead; try { Scanner file = new Scanner(new File("data.txt")); stringRead = file.nextLine; } catch (lOException ioc) { ioc.printStackTracc(); } System.out.println("Siring read: " + stringRead);//Line 21 } } At compile time, we get the following error: Test.java:2l: error: variable stringRead might not have been initialized System.out.println("String read: " + stringRead); I error Explain what the problem is and how to fix it.

Explanation / Answer

You declared them, but you didn't initialize them. Initializing them is setting them equal to empty string:

import java.io.IOException;
import java.io.File;
import java.util.Scanner;

public class Test
{
   public static void main(String[] args) {
       String stringRead = ""; // solution is by initialzing the stringRead to empty string
       try
       {
           Scanner file = new Scanner(new File("1.txt"));
           stringRead = file.nextLine();
       }
       catch(IOException ioe)
       {
           ioe.printStackTrace();
       }
       System.out.println("String read: " + stringRead); // error
   }
}

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