Trying to read text input in java from terminal using args[0]

Question

When I try to execute my .java program from terminal Mac using command : javac filename.java inputfile

It is throwing the error that "inputfile" are only accepted if annotation processing is explicitly requested

but in the program I do have command as follow:

    String fileinput = args[0];
     File file = new File(fileinput);
    out= getContents(file);

Thanks in advance

You need to use java ClassName inputfile as the command to execute the class. You are currently using javac which is used to compile the .java file. — Arvind Kumar Avinash
– Arvind Kumar Avinash, Commented Oct 9, 2021 at 18:54

Axiomatic-1 · Accepted Answer · 2021-10-09 19:06:43Z

1

When we execute a Java program ProgramName using the following syntax:

java  ProgramName  word0  word1  ...

the Java system will pass the words:

word0 to the first String parameter variable
word1 to the second String parameter variable
And so on.

But you are using Javac and its compiling .java. You should use java

answered Oct 9, 2021 at 19:06

Axiomatic-1

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