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  1. import java.util.regex.Matcher;
  2. import java.util.regex.*;
  3. import java.util.regex.Pattern;
  4. import java.io.*;
  5. class RegExDemo
  6. {
  7. 	public static void main(String[] arg) throws Exception
  8. 	{
  9. 		//System.out.println("hey");
  10. 		String file = "C:\\Users\\Ashu\\Desktop\\tp.xml";
  11. 		BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
  12. 		String str;
  13. 		//String fileContents="";
  14. 		StringBuffer sb = new StringBuffer();
  15. 		while((str=br.readLine())!= null)
  16. 			//fileContents = fileContents+"\n"+str;
  17. 			//System.out.println(fileContents);
  18. 			{sb.append(str);}
  19.  
  20. 	 	String sGroup = "<student>(<s>.*?</s>)+</student>";
  21. 	 	System.out.println("After sGroup");
  22. 	 	Pattern sPattern = Pattern.compile(sGroup);
  23. 	 	System.out.println("Creating Object sPattern");
  24. 	 	Matcher sMatcher = sPattern.matcher(sb);
  25. 	 	System.out.println("Matching");
  26. 	 	int count = 0;
  27. 	 	System.out.println("GETTING INTO THE LOOP");
  28. 	 	while(sMatcher.find())
  29. 	 	{
  30. 	 			System.out.println("IN THE LOOP");
  31. 				count++;
  32. 	 			System.out.println("Student: " +count);
  33. 				System.out.println(sMatcher.group(0));
  34. 	 			System.out.println("END OF LOOP");
  35. 	 	}
  36. 	}	
  37. }
Runtime error #stdin #stdout #stderr 0.06s 2841600KB
comments (?)
stdin
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<student>
	<s>ashu</s>
	<s>0544544578</s>
	<s>89</s>
</student>

<student>
	<s>ashu</s>
	<s>0544544578</s>
	<s>89</s>
</student>

<student>
	<s>ashu</s>
	<s>0544544578</s>
	<s>89</s>
</student>





<student>
	<s>ashu</s>
	<s>0544544578</s>
	<s>89</s>
</student>

<student>
	<s>ashu</s>
	<s>0544544578</s>
	<s>89</s>
</student>

<student>
	<s>ashu</s>
	<s>0544544578</s>
	<s>89</s>
</student>
stdout
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Standard output is empty
stderr
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Exception in thread "main" java.io.FileNotFoundException: C:\Users\Ashu\Desktop\tp.xml (No such file or directory)
	at java.io.FileInputStream.open0(Native Method)
	at java.io.FileInputStream.open(FileInputStream.java:195)
	at java.io.FileInputStream.<init>(FileInputStream.java:138)
	at java.io.FileInputStream.<init>(FileInputStream.java:93)
	at RegExDemo.main(Main.java:11)
https://ideone.com/0gNXIn
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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