lock table using both read ans write

[sang]

Hi

I want to lock the table with both read and write there is no action held after lock the table.

I know how to lock the table with read and write,

lock table mytable read;
lock table mytable write;

lock table mytable read write;

I am using both it is not valid one, how it is possible and it is implemented by using java program.pls give me the solution.

Thanks in advance
Sang