Certainly! Below is an example code in Java that reads a text file into an array. This code reads the content of a text file line by line and stores each line in an element of a String array.
Example 1:
java
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
public class ReadFileToArray {
public static void main(String[] args) {
String filePath = "sample.txt";
ArrayList<String> lines = new ArrayList<>();
try (BufferedReader br = new BufferedReader(new FileReader(filePath))) {
String line;
while ((line = br.readLine()) != null) {
lines.add(line);
}
} catch (IOException e) {
e.printStackTrace();
}
String[] linesArray = lines.toArray(new String[0]);
for (String l : linesArray) {
System.out.println(l);
}
}
}
Explanation of the code:
1. We import necessary classes for file reading and handling.
2. Define the file path "sample.txt" and create an ArrayList to store the lines read from the file.
3. Use a try-with-resources block to open a BufferedReader to read the file.
4. Read each line from the file using `br.readLine()` and add it to the ArrayList `lines`.
5. Handle IOException in case file reading fails.
6. Convert the ArrayList `lines` to a String array `linesArray` using the `toArray()` method.
7. Loop through the `linesArray` and print each line using a foreach loop.
Output:
If the content of "sample.txt" is:
Hello
World
Java
Programming
The output of running the program would be:
Hello
World
Java
Programming
You can modify the file path "sample.txt" to point to the text file you want to read in the same directory as the Java file.