55 lines
1.3 KiB
Java
55 lines
1.3 KiB
Java
import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileReader;
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import java.io.FileWriter;
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public class RemoveLines
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{
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public static void main(String[] args)
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{
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//Enter name of the file here
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String filename="foobar.txt";
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//Enter starting line here
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int startline=1;
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//Enter number of lines here.
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int numlines=2;
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RemoveLines now=new RemoveLines();
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now.delete(filename,startline,numlines);
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}
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void delete(String filename, int startline, int numlines)
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{
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try
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{
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BufferedReader br=new BufferedReader(new FileReader(filename));
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//String buffer to store contents of the file
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StringBuffer sb=new StringBuffer("");
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//Keep track of the line number
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int linenumber=1;
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String line;
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while((line=br.readLine())!=null)
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{
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//Store each valid line in the string buffer
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if(linenumber<startline||linenumber>=startline+numlines)
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sb.append(line+"\n");
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linenumber++;
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}
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if(startline+numlines>linenumber)
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System.out.println("End of file reached.");
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br.close();
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FileWriter fw=new FileWriter(new File(filename));
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//Write entire string buffer into the file
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fw.write(sb.toString());
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fw.close();
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}
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catch (Exception e)
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{
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System.out.println("Something went horribly wrong: "+e.getMessage());
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}
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}
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}
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