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Java String.split() sometimes giving blank strings
(3 answers)
Why in Java 8 split sometimes removes empty strings at start of result array?
(3 answers)
Closed 8 years ago.
I have a string like "2020". When I split it with split(""). Then i checked its length. It is giving me 5 . But it should give 4. What is the reason
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Simple way to repeat a string
(32 answers)
Print character multiple times [duplicate]
(5 answers)
Closed 2 years ago.
How can I print this in java?
###############
I know in python it is like this:
print("#" * 15)
This question already has answers here:
How do I declare and initialize an array in Java?
(31 answers)
Closed 2 years ago.
Can i ask whats the meaning of the input "52" on [], because if i delete the 52 the program wont run.
ArrayList<String> playerCard[]= new ArrayList[52];
The 52 tells the compiler how large the array is.
This question already has answers here:
Is there a longer than int Java List?
(3 answers)
Using a long as ArrayList index in java
(7 answers)
Closed 7 years ago.
I want to have a big ArrayList, so its index would go beyond int, how or what can I use for that?
I already checked that Vector does have the same issue, any ideas?
This question already has answers here:
Best way to Format a Double value to 2 Decimal places [duplicate]
(2 answers)
Closed 7 years ago.
The title says it all. Right now if I input a number like 100.50, in my program it prints as 100.5. Is there an easy way to make the program recognize the zero?
You can do this trick.
String s = String.format("%.2f", 100.50);
This question already has answers here:
How can I check if a single character appears in a string?
(16 answers)
Closed 9 years ago.
I have a string like :
"\"[\"a\",\"b\", \"c\"]\""
How to convert this to a list of strings
Could you suggest me a nice way of doing it in Java?
str.contains("c") does this job. However did not you think to consult String class documentation first?
Use contains():
if (str.contains("\"c\""))