Java Examples - print stack trace


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Problem Description

How to print stack of the Exception ?

Solution

This example shows how to print stack of the exception using printStack() method of the exception class.

public class Main{
   public static void main (String args[]) {
      int array[] = {20,20,40};
      int num1 = 15, num2 = 10;
      int result = 10;
      try { 
         result = num1/num2;
         System.out.println("The result is" +result);
         
         for(int i = 5; i >=0; i--) {
            System.out.println("The value of array is" +array[i]);
         }
      } catch (Exception e) {
         e.printStackTrace();
      }
   }
}

Result

The above code sample will produce the following result.

The result is1
java.lang.ArrayIndexOutOfBoundsException: 5
	at Main.main(Main.java:11)

The following is an another example of print stack of the Exception in Java.

public class Demo {
   public static void main(String[] args) {
      try {
         ExceptionFunc();
      } catch(Throwable e) {
         e.printStackTrace();
      }
   }
   public static void ExceptionFunc() throws Throwable {
      Throwable t = new Throwable("This is new Exception in Java...");
      
      StackTraceElement[] trace = new StackTraceElement[] {
         new StackTraceElement("ClassName","methodName","fileName",5)
      };
      t.setStackTrace(trace);
      throw t;
   }
}  

The above code sample will produce the following result.

java.lang.Throwable: This is new Exception in Java...
	at ClassName.methodName(fileName:5)

java_exceptions.htm

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