Java method Exception throw with return instance.

Work by Jianfei is licensed under a Creative Commons wei 3.0 Unported License.

 

1. We will get an error if write the getInstance method like below, cause the StaticEnvLib() throw a exception but there is no try- catch to catch it during the return new method.

 

  
    public   static  StaticEnvLib getInstance()
     {
          return   new  StaticEnvLib(); 
     }

public  StaticEnvLib()  throws  IOException {     
     
        String filename  =   " H:\\Darwin.ini " ;
        BufferedReader reader  =   new  BufferedReader( new  InputStreamReader(     
                 new  FileInputStream(filename),  " UTF-8 " ));     
        read(reader);     
        reader.close();     
    }   

2. Modify the StaticEnvLib to like below.

public StaticEnvLib()  {     
     
        String filename = "H:\\Darwin.ini";
        BufferedReader reader = new BufferedReader(new InputStreamReader(     
                new FileInputStream(filename), "UTF-8"));     
        read(reader);     
        reader.close();     
    } 

Work by Jianfei is licensed under a Creative Commons wei 3.0 Unported License.