Put printStackTrace() into a String: redirect the StackTrace to a String with a StringWriter/PrintWriter : Exception « Development « Java Tutorial

1. Java Tutorial
2. Development
3. Exception

import java.io.PrintWriter;
import java.io.StringWriter;

public class Main {
  public static void main(String args[]) {
    try {
      throw new Exception("for no reason!");
    } catch (Exception e) {
      StringWriter sw = new StringWriter();
      PrintWriter pw = new PrintWriter(sw);
      e.printStackTrace(pw);
      System.out.println(sw.toString().toUpperCase());
    }
  }
}