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Java Console - Input

Ah the fun times of inputting data from the command line in a Java program.



Java has come a long way in this respect. From starting with IO Streams to what they have now. Currently, there is a Console class in the java.io package. Here's a simple test I did capturing data the user enters:




import java.io.Console;
import java.io.IOException;

public class Test {

public Test() {

}

public static void main(String[] args) throws IOException {
String in = null;

Console c = System.console();
if (c == null) {
System.err.println("No console.");
System.exit(1);
}

while (!(in = c.readLine("> ")).equals(".quit")) {
// do something with the content you just captured
System.out.println(in);
}
}
}


That's a very simple program now isn't it? Just accepts whatever you enter and echos it back out to the screen. If you type in .quit it will quit the program.



So yep, just a simple program for capturing data in a Console application.

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