As title, this program no error and no output, but there is no problem in CMD,
Don't know where is the problem, in asking you to help

CodePudding user response:

Try to wait for the process execution, namely, add
P.w aitFor ();
Then print the return values of p
System. The out. Println (p.e xitValue ()); See if the child process to normal end?

CodePudding user response:

reference 1st floor qybao response:

try waiting for the process execution, namely plus
P.w aitFor ();
Then print the return values of p
System. The out. Println (p.e xitValue ()); See if the child process to normal end?

Settled, the cause of the coding, cannot use GBK