Computer Applications
A shopping website offers a special discount if the order ID has the sequence 555 anywhere in it. For example, 158545553031, 198555267140, …. .
Fill in the blanks (a) and (b) in the given Java Method to convert the order ID (a long integer) into a string and check if the sequence 555 is present in it.
void checkOrder(long oid)
{
String str = _______(a)_________;
if(______(b)_______)
{
System.out.println("Special Discount Eligible: " + oid);
}
}
Java String Handling
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Answer
(a) String str = String.valueOf(oid);
(b) if (str.contains("555"))
Reason
To check if "555" appears in the order ID, we need to convert the long number into a String. String.valueOf(oid) correctly converts a long to a String. contains("555") checks if the substring "555" is present in str.
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