Token.java

public final class Token {

    public final String value;
    public final TokenType type;

    public final int line, column;

    public Token(TokenType type, String value, int line, int column) {
        this.value = value;
        this.type = type;
        this.line = line;
        this.column = column;
    }

    @Override
    public String toString() {
        return "(" + type.name().toLowerCase() + " - " + value + ")";
    }

}