Simple java logger example

Log.java

// minified
class Log{public static final String RESET="\u001B[0m";public static final String RED="\u001B[31m";public static final String CYAN="\u001B[36m";static void p(Boolean ln,Boolean err,Object... args){java.io.Console console=java.lang.System.console();for(Object pts:args)if(err)java.lang.System.err.print(pts);else console.writer().print(pts);if(ln)console.writer().println();}static String f(Object format,Object... args){return new java.util.Formatter(java.util.Locale.getDefault()).format(format.toString(),args).toString();}public static void print(Object message,Object... args){p(false,false,f(message,args));}public static void println(Object message,Object... args){p(true,false,f(message,args));}public static void info(Object message,Object... args){p(true,false,f(CYAN+message+RESET,args));}public static void error(Object message,Object... args){p(true,true,f(RED+message+RESET,args));}}

Main.java

class ANSI {
    public static final String RESET = "\u001B[0m";
    public static final String BLACK = "\u001B[30m";
    public static final String RED = "\u001B[31m";
    public static final String GREEN = "\u001B[32m";
    public static final String YELLOW = "\u001B[33m";
    public static final String BLUE = "\u001B[34m";
    public static final String PURPLE = "\u001B[35m";
    public static final String CYAN = "\u001B[36m";
    public static final String WHITE = "\u001B[37m";
}

class Log {
    static void p(Boolean ln, Boolean err, Object... args) {
        java.io.Console console = java.lang.System.console();
        for (Object pts : args)
            if (err) java.lang.System.err.print(pts);
            else console.writer().print(pts);
        if (ln) console.writer().println();
    }

    static String f(Object format, Object... args) {
        return new java.util.Formatter(java.util.Locale.getDefault())
            .format(format.toString(), args)
            .toString();
    }

    public static void print(Object message, Object... args) {
        p(false, false, f(message, args));
    }

    public static void println(Object message, Object... args) {
        p(true, false, f(message, args));
    }

    public static void info(Object message, Object... args) {
        p(true, false, f(ANSI.CYAN + message + ANSI.RESET, args));
    }

    public static void error(Object message, Object... args) {
        p(true, true, f(ANSI.RED + message + ANSI.RESET, args));
    }
}

public class Main {
    public static void main(String[] args) {
        String str = "world";
        int num = 10;

        Log.println("hello %s (%d)", str, num);
        Log.info("hello %s (%d)", str, num);
        Log.error("hello %s (%d)", str, num);
        Log.print("\n");
        Log.println(System.getProperties());
    }
}