Using Jni Interface

Question

I have used the Jni Interface to make some c files compatible with my java App. I have taken a clock setting from a RTC in my device and I can view it in a dos window and was just wondering how I get it over to my Java from the c code. Does anyone have any ideas the code is as follows. I was thinking of writing the time out to a text file and reading it in to my java app. Perhaps there is an simpler way of doing this.
void Read_RTC(void)
unsigned int i;
unsigned char sec,sec1,ten_sec,time1,time1_ten,time2,time2_ten;
unsigned char TotalTime;
     if(RTC_ready()) //check status of rtc
          RaiseSS_RTC();
          SendByte(0x00); //send start address, this will auto inc
          //read addresses 0x00 - 0x10 this includes all time/date and alarm0&1 and regs
          for(i=0;i<17;i++)
               RTC_RX_data=SendByte(0x00);     //send dummy byte to read from address
          LowerSS_RTC();
          time2_ten =(RTC_RX_data[2]>>4)&0x0f;
          cout<<(unsigned int)(unsigned char) time2_ten<<endl;
          time2 =(RTC_RX_data[2])&0x0f;
          cout<<(unsigned int)(unsigned char) time2;
          time1_ten =(RTC_RX_data[1]>>4)&0x0f;
          cout<<(unsigned int)(unsigned char) time1_ten;
          time1 =(RTC_RX_data[1])&0x0f;
          cout<<(unsigned int)(unsigned char) time1;
          ten_sec=(RTC_RX_data[0]>>4)&0x0f;
          cout<<(unsigned int)(unsigned char)ten_sec;
          sec=(RTC_RX_data[0])&0x0f;
          cout<<(unsigned int)(unsigned char)sec;
          TotalTime = (ten_sec+sec+time1_ten+time1+time2_ten+time2);
          cout <<(unsigned int)(unsigned char)TotalTime;
     else
          cout<<"RTC initialise failure"<<endl;

Answer 1

I would suggest creating a simple class with public fields for all the elements, then passing an instance of that class into the JNI method. You can then populate the class instance using JNI methods GetFieldID and SetByteField (assuming your fields are byte fields). The details would take too long to fill in, but take a look at the JNI documentation and you should get the idea.
HTH
Robin