Say I had a 2d array called answers[][]. The array is 2 columns, so 0 and 1 and about 60ish rows long. I need to write the whole Array to a file I create. And then close that file. Any idea how to do this using Java?
Solution
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class WriteFile {
public static void main(String[] args) throws IOException {
//lets array has elements inside
int answers[][] = new int[60][2];
String fileName = \"records.txt\";// output file name
File file = new File(fileName);
FileWriter fw= new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
int i=0;
while(i < 60){ // reading 60 rows
bw.write(answers[i][0]+\" \"+answers[i][1]); // writing current column
bw.newLine(); // writing new line
i++;
}
bw.close();
fw.close();
}
}
.
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Say I had a 2d array called answers----- The array is 2 columns- so 0.docx
1. Say I had a 2d array called answers[][]. The array is 2 columns, so 0 and 1 and about 60ish rows
long. I need to write the whole Array to a file I create. And then close that file. Any idea how to
do this using Java?
Solution
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class WriteFile {
public static void main(String[] args) throws IOException {
//lets array has elements inside
int answers[][] = new int[60][2];
String fileName = "records.txt";// output file name
File file = new File(fileName);
FileWriter fw= new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
int i=0;
while(i < 60){ // reading 60 rows
bw.write(answers[i][0]+" "+answers[i][1]); // writing current column
bw.newLine(); // writing new line
i++;
}
bw.close();
fw.close();
}
}
![Say I had a 2d array called answers[][]. The array is 2 columns, so 0 and 1 and about 60ish rows
long. I need to write the whole Array to a file I create. And then close that file. Any idea how to
do this using Java?
Solution
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class WriteFile {
public static void main(String[] args) throws IOException {
//lets array has elements inside
int answers[][] = new int[60][2];
String fileName = "records.txt";// output file name
File file = new File(fileName);
FileWriter fw= new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
int i=0;
while(i < 60){ // reading 60 rows
bw.write(answers[i][0]+" "+answers[i][1]); // writing current column
bw.newLine(); // writing new line
i++;
}
bw.close();
fw.close();
}
}](https://image.slidesharecdn.com/sayihada2darraycalledanswers-thearrayis2columns-so0-230201031549-568485ed/85/say-i-had-a-2d-array-called-answers-the-array-is-2-columns-so-0docx-1-320.jpg)
