throw vs. throws in Java

throw and throws are the two keywords used to declare an exception in Java. They are very useful for programmers who have to handle exceptions.

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Comparison Table

| **Throw** | **Throws** | | --- | --- | | `throw` is followed by an instance. For example: `throw` new SQLException("SQL Exception");| `throws` is followed by a class name i.e., `throws` SQLException;| | `throw` is used within a method. | `throws` is used next to the method signature.| | A programmer cannot throw multiple `throws` at a single time.| A programmer can throw multiple `throws` at a single time. For example: `throws IOException, ArithmeticException;`| | The `throw` keyword explicitly throws an exception. | The `throws` keyword declares an exception and works similarly to the [try-catch block](https://how.dev/answers/try-catch-and-finally-block-in-java). |

`throw` code

The following example shows how to use the `throw` keyword in Java; it displays the exception once it occurs.
class Code{  
   void checkMarks(int marks){  
	if(marks<50)  
	   throw new ArithmeticException("Exam failed");  
	else  
	   System.out.println("Exam passed");  
   }  
   public static void main(String args[]){  
	Code object = new Code();
	object.checkMarks(43);   
   }  
}

`throws` code

The following example explains how to use the `throws` keyword in java. 
class Code{  
  int checkMarks(int marks) throws ArithmeticException
  {  
	    int result= marks/0;
	    return result; 
  }
  public static void main(String args[])
  {  
	  Code object = new Code();
    try
    {
	    System.out.println (object.checkMarks(43)); 
    }  
    catch(ArithmeticException except)
    {
	    System.out.println("Error in dividing number by zero");
    } 
  }
}
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