Compare, find, replace, split and intercept Java strings
1, String comparison 1. equals(): case sensitive, and the return value type is boolean;
//Case sensitive comparison
String str1 = "hello" ;
String str2 = "Hello" ;
System.out.println(str1.equals(str2)); // Return false
2. Case insensitive: equalsIgnoreCase(), the return value type ...
Posted by phigga on Mon, 22 Nov 2021 16:03:36 -0800
JZ29 Clockwise Print Matrix
Title Address describe Enter a matrix to print out each number in clockwise order from outside to inside, for example, if you enter the following 4 X 4 matrix: [[1,2,3,4], [5,6,7,8], [9,10,11,12], [13,14,15,16]] Print out the numbers in turn [1,2,3,4,8,12,16,15,14,13,9,5,6,7,11,10] Data Range: 0 <= matrix.len ...
Posted by kettle_drum on Sat, 20 Nov 2021 09:37:42 -0800
This week is also not much, no week I am satisfied with, no sense of knowledge to enrich, feel pushed by the task, plan the weekend two days to brush topics and organize evening homework, but really not as good as to do it in advance. On Sunday, I temporarily added two thought reports, a love letter, and I was very speechless. I hope I can ...
Posted by lunarul on Sun, 07 Nov 2021 08:27:37 -0800
28 implementation str ()
Determines whether a string is a substring of another string and returns its position.
Enter a parent string and a substring, and output an integer indicating the position of the substring in the parent string. If it does not exist, return - 1.
Input: haystack = "hello", need = "ll" Output: 2
Posted by jlpulido on Thu, 04 Nov 2021 21:04:14 -0700
String string is a data structure that appears very frequently in our development. I have prepared several small questions here. Whether you are a beginner or an expert, you can try whether you can easily solve the following questions. If you have better solutions, you are welcome to communicate in the comments!
How to invert a string ...
Posted by alex57 on Thu, 04 Nov 2021 07:28:15 -0700
String function (the following header files are "string.h")
1.strlen (find string length)
String counting does not need to modify the string, so it is decorated with conut;
//Method 1 ...
Posted by mikosiko on Mon, 01 Nov 2021 10:25:22 -0700
Using Dev CPP as the programming environment
Note that dev cpp5.4.0 does not have the function of formatting code, so do not set it again Set common shortcuts for Ctr+E: multiline comment Ctrl+Shift+E: uncomment multiline
Ctrl+Z: undo Ctrl+Shift+Z: cancel undo
Ctrl+L: collapse function Ctrl+Shif+L: unfold function
Set Dev Cpp
Dev C + + ini ...
Posted by NoFear on Sun, 24 Oct 2021 10:42:08 -0700
C language and python are often confused, especially I can't help adding a semicolon after Python... Just make a note for myself to save forgetting... (from the little turtle)
Strings are widely used and extremely convenient:
'''Determine whether it is palindrome number'''
>>> x = '123454321'
>>> 'Is the palin ...
Posted by frabble on Sat, 23 Oct 2021 00:25:21 -0700
The repetition number of a string is defined as the maximum number R such that the string can be partitioned into R same consecutive substrings. For example, the repetition number of "ababab" is 3 and "ababa" is 1.
Given a string containing lowercase letters, you are to find a substring of it with maximum repetition number.
The input c ...
Posted by ereptur on Fri, 22 Oct 2021 01:05:13 -0700