How do i find a string inside a string??

Question

For eg:
I have:
String str = "I love you"
How do I check that the word love exists in the string ?

Answer 1

Use contains() method

if (str.contains("love"){
System.out.print(true);
}

Answer 2

You can use contains(), indexOf() and lastIndexOf() method to check if one String contains another String in Java or not.
for example:

System.out.print(str.contains ("love"));

System.out.print (str.indexOf ("love") != -1);

System.out.print (str.lastIndexOf ("love") != -1);

Answer 3

https://www.geeksforgeeks.org/java-string-contains-method-example/