8eb1b1bb9f
1. Using FileReader 2. Using BufferedReader 3. Using Scanner(String and int) 4. Using Files.readAllLines
35 lines
829 B
Java
35 lines
829 B
Java
package com.baeldung.fileparser;
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import java.io.FileReader;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Scanner;
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public class ScannerIntExample {
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private static final String FILENAME = "src/resources/num.txt";
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public static void main(String[] args) {
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try {
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System.out.println(generateArrayListFromFile(FILENAME));
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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private static ArrayList<Integer> generateArrayListFromFile(String filename) throws IOException {
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ArrayList<Integer> result = new ArrayList<>();
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try (Scanner s = new Scanner(new FileReader(filename))) {
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while (s.hasNext()) {
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result.add(s.nextInt());
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}
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return result;
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}
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}
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}
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