Menu
I have been working on and off with Java/Python. Now in this situation I want to check if the element is in the list and do stuff...
Python says:
if "a" in ["a", "b", "c"]: print "It's there!" Does java provide any one liner for this rather than creating ArrayList / Set or similar data structure in steps and adding elements to it?
Thanks
814
We can use the in-built python List method, count(), to check if the passed element exists in the List. If the passed element exists in the List, the count() method will show the number of times it occurs in the entire list. If it is a non-zero positive number, it means an element exists in the List.
contains() in Java. ArrayList contains() method in Java is used for checking if the specified element exists in the given list or not. Returns: It returns true if the specified element is found in the list else it returns false.
count() function: This function is used to count the presence of element is the string. We can use this function to check the existence of string in large string. If string exist in string then it return some number else it return 0.
“in” operator − This operator is used to check whether an element is present in the passed list or not. Returns true if the element is present in the list otherwise returns false.
Use Arrays.asList:
if( Arrays.asList("a","b","c").contains("a") ) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
