in java how to throw exception from function
public void doChangePin(int oldPin, int pin) throws Exception { //need to add throws followed by exception name
if (oldPin == pinCode) {
pinCode = pin;
} else {
throw new Exception("some message"); //throwing the exception by creating its new object
}
}java throw an exception
public static void main(String[] args) {
Scanner kb = new Scanner(System.in);
System.out.println("Enter a number");
try {
double nb1 = kb.nextDouble();
if(nb1<0)
throw new ArithmeticException();
else System.out.println( "result : " + Math.sqrt(nb1) );
} catch (ArithmeticException e) {
System.out.println("You tried an impossible sqrt");
}
}what is exception in java
In java exception is an object. Exceptions are created when an abnormal
situations are arised in our program. Exceptions can be created by JVM or
by our application code. All Exception classes are defined in java.lang.
In otherwords we can say Exception as run time error.Copyright © 2021 Codeinu
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