public class Time2
{
    private int hour;
    private int minute;
    private int second;

    public Time2()
    {
        this( 0, 0, 0 );
    }

    public Time2( int h )
    {
        this( h, 0, 0 );
    }

    public Time2( int h, int m )
    {
        this( h, m, 0 );
    }

    public Time2( int h, int m, int s )
    {
        setTime( h, m, s );
    }

    public Time2( Time2 time )
    {
        this( time.getHour(), time.getMinute(), time.getSecond() );
    }

    public void setTime( int h, int m, int s )
    {
        setHour( h );
        setMinute( m );
        setSecond( s );
    }
    public void setHour( int h )
    {
        if ( h >= 0 && h < 24 )
            hour = h;
        else
            throw new IllegalArgumentException( "hour must be 0-23" );
    }
    public void setMinute( int m )
    {
        if ( m >= 0 && m < 60 )
            minute = m;
        else
            throw new IllegalArgumentException( "minute must be 0-59" );
    }
    public void setSecond( int s )
    {
        if ( s >= 0 && s < 60 )
            second = ( ( s >= 0 && s < 60 ) ? s : 0 );
        else
            throw new IllegalArgumentException( "second must be 0-59" );
    }
    public int getHour()
    {
        return hour;
    }
    public int getMinute()
    {
        return minute;
    }

    public int getSecond()
    {
        return second;
    }
    public String toUniversalString()
    {
        return String.format(
            "%02d:%02d:%02d", getHour(), getMinute(), getSecond() );
    }
    public String toString()
    {
        return String.format( "%d:%02d:%02d %s",
            ((getHour() == 0 || getHour() == 12) ? 12 : getHour() % 12 ),
                getMinute(), getSecond(), ( getHour() < 12 ? "AM" : "PM" ) );
    }
}