java.lang.reflect.Constructor.getExceptionTypes() Method Example

Description

The java.lang.reflect.Constructor.getExceptionTypes() method returns an array of Class objects that represent the types of exceptions declared to be thrown by the underlying constructor represented by this Constructor object. Returns an array of length 0 if the constructor declares no exceptions in its throws clause.

Declaration

Following is the declaration for java.lang.reflect.Constructor.getExceptionTypes() method.

public Class<?>[] getExceptionTypes()

Returns

the exception types declared as being thrown by the constructor this object represents.

Example

The following example shows the usage of java.lang.reflect.Constructor.getExceptionTypes() method.

package com.tutorialspoint;

import java.lang.reflect.Constructor;

public class ConstructorDemo {

   public static void main(String[] args) {

      Constructor[] constructors = SampleClass.class.getConstructors();
      Class[] exceptions = constructors[0].getExceptionTypes();
      for (int i = 0; i < exceptions.length; i++) {
         System.out.println(exceptions[i]);
      }
   }
}

class SampleClass {
   private String sampleField;

   public SampleClass() throws ArrayIndexOutOfBoundsException {
   }

   public SampleClass(String sampleField){
      this.sampleField = sampleField;
   }

   public String getSampleField() {
      return sampleField;
   }

   public void setSampleField(String sampleField) {
      this.sampleField = sampleField; 
   } 
}

Let us compile and run the above program, this will produce the following result −

class java.lang.ArrayIndexOutOfBoundsException