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How to store the contents of arrays in a file using Java?
You can use write data into a file using the Writer classes. In the example given below, we are writing the contents of the array using the BufferedWriter.
Example
import java.io.BufferedWriter;
import java.io.FileWriter;
public class WritingStringArrayToFile {
public static void main(String args[]) throws Exception {
String[] myArray = {"JavaFX", "HBase", "OpenCV", "Java", "Hadoop", "Neo4j"};
BufferedWriter writer = new BufferedWriter(new FileWriter("myFile.txt", false));
for(int i = 0; i < myArray.length; i++) {
writer.write(myArray[i].toString());
writer.newLine();
}
writer.flush();
System.out.println("Data Entered in to the file successfully");
}
}Output
Data Entered in to the file successfully
If you verify the file you can observe that the file with the contents of an array −
Example
import java.io.BufferedWriter;
import java.io.FileWriter;
public class WritingIntArrayToFile {
public static void main(String args[]) throws Exception {
Integer[] myArray = {23, 93, 56, 92, 39};
BufferedWriter writer = new BufferedWriter(new FileWriter("myFile.txt", false));
for(int i = 0; i < myArray.length; i++) {
writer.write(myArray[i].toString());
writer.newLine();
}
writer.flush();
System.out.println("Data Entered in to the file successfully");
}
}Output
Data Entered in to the file successfully
If you verify the file you can observe that the file with the contents of an array −
Updated on: 16-Jun-2020
2K+ Views
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