CODEWITHSUNDEEP
java
Swapnil
Swapnil

Reputation: 1134

how to print the program which i am writing using FileReader class

I want to print the source code of current program(the program which is running)on the console using File reader?How to do it? i.e using java.io.FileReader Class

Upvotes: 0

Views: 103

Answers (1)

Deactivator2
Deactivator2

Reputation: 311

The only way I see to do that is to have your FileReader object open the .java file from your workspace, loop through and print out each line.

EDIT: adding rough outline.

package test;

import java.io.BufferedReader;
import java.io.FileReader;

public class Test {
    public void printMe() {
        try {
            String classname = Test.class.toString();
            // This gets the full class name, including package
            classname=  classname.replace("class ", "");
            classname= classname.replace(".", "/");
            BufferedReader br = new BufferedReader(new FileReader(<path_to_workspace/project_name/source_folder> + classname + ".java"));

        String line = br.readLine();
        while(line != null) {
            System.out.println(line);
            line=br.readLine();
        }

        } catch (Exception e) {
            e.printStackTrace();
        }       
    }
}

Keep in mind, this will only work in a workspace. You cannot print the source code of a complied java class inside a jar, as the source is compiled and thus not human-readable.

Upvotes: 1

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