Here's a sample code that reads user input using the Scanner class: import java.util.Scanner; public class Test { public static void main(String[] args) { try (Scanner scanner = new Scanner(System.in)) { System.out.println("Enter input1: "); final String input1 = scanner.nextLine(); System.out.println("Enter input2: "); final int input2 = scanner.nextInt(); System.out.println("input1: " + input1); System.out.println("input2: " + input2); } catch (Exception e) { e.printStackTrace(); } } }

Here's a sample code that reads user input using the Console class: import java.io.Console; public class Test { public static void main(String[] args) { Console console = System.console(); final String input1 = console.readLine("Enter input1: "); final char[] input2 = console.readPassword("Enter input2: "); System.out.println("input1: " + input1); System.out.println("input2: " + new String(input2)); } }

Here's a sample code that reads from file using the Scanner class: import java.nio.charset.StandardCharsets; import java.nio.file.Paths; import java.util.Scanner; public class Test { public static void main(String[] args) { try (Scanner scanner = new Scanner(Paths.get("/opt/file1.txt"), StandardCharsets.UTF_8.name())) { while (scanner.hasNext()) { String line = scanner.nextLine(); System.out.println(line); } } catch (Exception e) { e.printStackTrace(); } } }