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How to invoke a console program in C++ on Windows?
How to invoke a console program in .NET programming?
How to invoke a console program in JAVA?
Update date: 2024-09-29 18:07:38
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In Java, if you want to invoke a console program and output its parameters or execution results in real-time, you can use the ProcessBuilder
class. This class allows you to create operating system processes. Here's an example of how to use ProcessBuilder
to invoke a console program and read its output in real-time:
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Arrays; public class ConsoleProgramInvoker { public static void main(String[] args) { // Path to the console program and its arguments String programPath = "path/to/your/console/program"; String[] programArguments = {"arg1", "arg2", "arg3"}; // Create a ProcessBuilder instance ProcessBuilder processBuilder = new ProcessBuilder(programPath, programArguments); try { // Start the process Process process = processBuilder.start(); // Read the output from the process BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream())); String line; while ((line = reader.readLine()) != null) { System.out.println(line); } // Wait for the process to complete int exitCode = process.waitFor(); System.out.println("Program exited with code: " + exitCode); } catch (IOException | InterruptedException e) { e.printStackTrace(); } } }
In this example, we create a ProcessBuilder
instance with the path to the console program and its arguments. We then start the process using processBuilder.start()
. To read the output from the process in real-time, we create a BufferedReader
to read from the process's input stream. We read each line of output and print it to the console. Finally, we wait for the process to complete and print its exit code.
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