How can the programmer choose the correct language for made or developer his system and What are factors dependent for that's?

It should be on the basis of kind of system you are going to build.

factors like stand alone desktop based, web based, no. of users, network requirements like intranet/internet required, scientific applications- speed of transactions, and many more etc.

Its depend on Many Factors such as

Language it self  is suitable to system   requirements and support  For  ,Network ,easy Maintenance , hardware .....

For developer  easy and fast  learning,security support , performance,Stronger ,Support new technology ,price Licensee,have many reference,updating  and upgrade for new technology

For OS support for many operating system and thin processing and memory using 

that's must factors any developer Focus on it

It depends on what kind of system are you developing, and what is the performance that you are looking for.