在存储数据库之前，删除String数组的最后一个空字符

Question

I am Storing Values from String Matrix (which is filled from a text file) to DataBase Table. everything is working fine,but the values that are stored in Database have blank space after each word. I am sure these blanks are null value or end of string indicator like "\\0"..Please tell me how to remove this before storing value in database.

ps=con.prepareStatement("Insert into Daily_Entry_Details" + 
                        "values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
for(int k=0;k<col;k++) {
    sdata=strdata[i][k].toString();
    ps.setString(k+1,sdata);
}
ps.executeUpdate();

this code is working fine but database values are shown with space at last. this may be because of '\\0' .Please help me to remove this. thnks

Answer 1

It is possible ... but unlikely ... that you have NUL characters at the string. It is more likely that they are just spaces.

The way to get rid of leading and trailing whitespace is to use trim() ; eg

    ps.setString(k+1, sdata.trim());

Note that in this context, "whitespace" means any character that is less or equal to SP ... and that includes NUL.