Computer scienceProgramming languagesJavaBasicsStrings

Processing strings

Theory

Find the first occurrence of the word "the"

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Write a program that takes a sentence as input and returns the index of the first occurrence of the word "the" (can be part of a word), regardless of the capitalization. If there is no occurrence of "the", the program should output -1.

For instance, if the sentence is “The apple is red.” the output should be 0, if the sentence is “I ate the red apple.” the output should be 6, and if the sentence is “I love apples.” the output should be -1.

Note, the and The are equal.

You can use .contains("the") method to check if the sentence contains "the". Then you can check the index for its first occurrence using .indexOf("the") method. To avoid conflict between "the" or "The", convert the sentence into uppercase or lowercase before checking.

Sample Input 1: 

The apple is red.

Sample Output 1: 

0

Sample Input 2: 

I ate the red apple.

Sample Output 2: 

6
Write a program in Java 17
class Main {
public static void main(String[] args) {
// put your code here
}
}
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