The getMessage() method of Throwable class is used to return a detailed message of the Throwable object which can also be null. One can use this method to get the detail message of exception as a string value.
Syntax:
public String getMessage()
Return Value: This method returns the detailed message of this Throwable instance.
Below programs demonstrate the getMessage() method of java.lang.Throwable Class
Example 1:
// Java program to demonstrate// the getMessage() Method.  import java.io.*;  class GFG {      // Main Method    public static void main(String[] args)        throws Exception    {          try {              // divide the numbers            divide(2, 0);        }          catch (ArithmeticException e) {              System.out.println("Message String = "                               + e.getMessage());        }    }      // method which divide two numbers    public static void divide(int a, int b)        throws ArithmeticException    {          int c = a / b;          System.out.println("Result:" + c);    }} |
Output:
Message String = / by zero
Example 2:
// Java program to demonstrate// the getMessage() Method.  import java.io.*;  class GFG {      // Main Method    public static void main(String[] args)        throws Exception    {          try {              test();        }          catch (Throwable e) {              System.out.println("Message of Exception : "                               + e.getMessage());        }    }      // method which throws UnsupportedOperationException    public static void test()        throws UnsupportedOperationException    {          throw new UnsupportedOperationException();    }} |
Output:
Message of Exception : null
References:
https://docs.oracle.com/javase/10/docs/api/java/lang/Throwable.html#getMessage()
