import org.antlr.v4.runtime.; import org.antlr.v4.runtime.tree.;

public class TestLanguage { public static void main(String[] args) throws Exception { // Input program (you can replace this with actual input from file) String program = """ let var N := 8; type intArray = array of int; var row := intArray [ N ] of 0; var col := intArray [ N ] of 0; """;

    // Create input stream
    CharStream input = CharStreams.fromString(program);

    // Create lexer
    LanguageLexer lexer = new LanguageLexer(input);

    // Create tokens stream
    CommonTokenStream tokens = new CommonTokenStream(lexer);

    // Create parser
    LanguageParser parser = new LanguageParser(tokens);

    // Parse and get the parse tree
    ParseTree tree = parser.program();

    // Print the parse tree
    System.out.println(tree.toStringTree(parser));
}

}