import java.io.File;
import java.io.IOException;

/**
 * 文件对比复制
 * @author JIANGYOUYAO
 * @date 2021/6/7 0007
 */
public class findC {


    static  String targetFilePath="C:/";
    static  Long _1mb=1024L*1024L;

    public static void main(String[] args) throws IOException {


        File sourceFile=new File(targetFilePath);
        traverseFolder(sourceFile);


    }


    public static  void traverseFolder(File file) throws IOException {

        if (file.exists()) {
            File[] files = file.listFiles();
            if (null == files || files.length == 0) {
                return;
            } else {
                for (File file2 : files) {
                    if (file2.isDirectory()) {

                        traverseFolder(file2);
                    } else {
                        if(file2.length()>_1mb*50){
                            System.out.println( file2.length()/_1mb+"MB"+"\t"+file2.getAbsolutePath());
                        }
                    }
                }
            }
        } else {
            System.out.println("文件不存在!");
        }
    }



}