Java Program to Convert a Stack Trace to a String

Example: Convert stack trace to a string

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

public class PrintStackTrace {

    public static void main(String[] args) {

        try {
            int division = 0 / 0;
        } catch (ArithmeticException e) {
            StringWriter sw = new StringWriter();
            e.printStackTrace(new PrintWriter(sw));
            String exceptionAsString = sw.toString();
            System.out.println(exceptionAsString);
        }
    }
}

Output

java.lang.ArithmeticException: / by zero
    at PrintStackTrace.main(PrintStackTrace.java:9)

In the above program, we've forced our program to throw ArithmeticException by dividing 0 by 0.

In the catch block, we use StringWriter and PrintWriter to print any given output to a string. We then print the stack trace using printStackTrace() method of the exception and write it in the writer.

Then, we simply convert it to string using toString() method.