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);
}
}
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.
Related Questions
Write a Java program to enter any sentence and convert the sentence to uppercase. Print only those words of the sentence whose first and last letters are the same.
Two strings,
city1andcity2, are compared usingcity1.compareTo(city2), and the result is less than zero. What does this indicate?Write the output of the following String methods:
String x= "Galaxy", y= "Games";(a) System.out.println(x.charAt(0)==y.charAt(0));
(b) System.out.println(x.compareTo(y));
Write a program in Java to enter any sentence. Also ask the user to enter a word. Print the number of times the word entered is present in the sentence. If the word is not present in the sentence, then print an appropriate message.