Java呼叫(調用)外部程式

process 

processbuilder

如何正確的使用 Runtime.exec()

Process process = null;
ProcessBuilder pb = new ProcessBuilder(Arrays.asList(params));
process = pb.start();

finally {
try {
if(process.isAlive()){
process.destroyForcibly();
}
} catch (Exception e) {
return false;
}
}