How to print a java stack trace from an exception?

Source:

public class PrintStack {
   public static void main(String[] args) {
      try {
         Class1 c1 = new Class1();
         c1.test1();
      } catch (Exception e) {
        e.printStackTrace();
      }
   }
}
 
class Class1 {
   void test1() {
      Class2 c2 = new Class2();
      c2.test2();
   }
}
 
class Class2 {
   void test2() {
      int x = 10 / 0;
   }
}

Output:

   $ java PrintStack 
   java.lang.ArithmeticException: / by zero
       at Class2.test2(PrintStack.java:22)
       at Class1.test1(PrintStack.java:16)
       at PrintStack.main(PrintStack.java:6)