JAVA
Write a program that
1. opens a text file
2. reads lines of text from the file
3. Converts each line to uppercase
4. saves them in an ArrayList
5. Writes the list of Strings to a new file named "CAPSTEXT.txt"
thanks for the question, here is the code . Please update the below two lines which points to the input file that needs to be read and the location of the output file base don the location in your computer
private static final String
INPUT_FILE =
"D:\\artist.txt";
private static final String
OUTPUT_FILE =
"D:\\CAPSTEXT.txt";
=======================================================================================
import java.io.*;
import java.util.Scanner;
import java.util.ArrayList;
public class Programs {
private static final String
INPUT_FILE =
"D:\\artist.txt";
private static final String
OUTPUT_FILE =
"D:\\CAPSTEXT.txt";
public static void
main(String[] args) {
ArrayList<String>
fileLines = new ArrayList<>();
// the below block
of code reads from the input file into the ArrayList
// coverts each line to
upper case and add them to the arraylist
try {
Scanner scanner = new Scanner(new
File(INPUT_FILE));
while (scanner.hasNext()) {
fileLines.add(scanner.nextLine().toUpperCase());
}
scanner.close();
} catch
(FileNotFoundException e) {
System.out.println("Unable to
read from file : " +
INPUT_FILE);
System.exit(1);
}
// the above block
of code reads from the input file into the ArrayList
// the below block of
code takes each line from the array list and writes them
// to the output
file
try {
PrintWriter writer = new
PrintWriter(new
FileWriter(OUTPUT_FILE));
for (String line : fileLines) {
writer.write(line);
writer.write("\r\n"); // add new line
character to the end
}
writer.flush();
System.out.println("File created
successfully!");
} catch
(IOException e) {
System.out.println("Unable to
write data to file: " +
OUTPUT_FILE);
}
// the above block
of code takes each line from the array list and writes them
// to the output
file
}
}
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