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RecordStore rs = RecordStore.openRecordStore("StoryDataBase1",true);
String data_to_write_in_file = Slug.getString()+"^"+title.getString()+"^"+Body.getString()+"^"+com.editorial.Main.MainImagePath+"^"+com.editorial.Main.MainVideoPath+"^"+com.editorial.Main.MainVoicePath+"$";
byte b[] = rs.getRecord(1);
String str = new String(b,0,b.length);
if(str.equals("")) {
byte bytes[] = data_to_write_in_file.getBytes();
rs.addRecord(bytes,0,bytes.length);
}
else
{
str=str+data_to_write_in_file;
byte[] data = str.getBytes();
rs.setRecord(1, data, 0, data.length);
}
rs.closeRecordStore();
在這個我想檢查rms是否包含第一個值,否則它會在它中輸入新的值?但我仍然有點困惑,信息是否將永久保存在移動或不...如何檢查rms中的第一個值在j2me中爲null?
字符串data_to_write_i n_file =「」; \t \t如果(rs.getNumRecords()> 0) \t \t { \t \t \t recData =新的字節[rs.getRecordSize(1)]; \t \t \t len = rs.getRecord(1,recData,0); \t \t \t String value = new String(recData,0,len); \t \t \t value = value + data_to_write_in_file; \t \t \t \t \t byte [] data = data_to_write_in_file.getBytes(); \t \t \t \t \t rs.setRecord(1,data,0,data.length); \t \t} \t \t別的 \t \t { \t \t \t字節字節[] = data_to_write_in_file.getBytes(); \t \t \t \t \t \t rs.addRecord(bytes,0,bytes.length); \t \t} \t我已經寫了這個...但是這仍表現出隨機接取ERR – Sourabh 2011-02-23 13:24:48
你在哪裏檢查空值?因爲如果值不可用意味着它返回空值。另請參閱我的更新。 – bharath 2011-02-23 13:44:28