[Solved] Is Java String immutable? [duplicate]

[ad_1] Yes, the java string is immutable. In changeString, you are passing in a reference to the string lalala and then you are changing the reference to one that points to lalalaCHANGE!!!. The original string object is not changed, and the reference in main still refers to that original object. If you were to use … Read more

[Solved] c++ string (nub warning)

[ad_1] Change your include to #include<string> The string.h contains functions to manipulate string, but not the std::string class. #pragma once Is to prevent headers for being included more then once, leading to duplicated symbols. In C++, #include means the compiler just replaces the #include with the contents of the file included. Imagine you have A.h … Read more

[Solved] Extracting two numbers from a string using java

[ad_1] For this you don’t even need regex. Just split the String and call the right indices: String latLongString = “Tracking info Latitude: 3.9574667 Longitude: 7.44882167″; //yours obviously won’t be hardcoded String[] split = latLongString.split(” “); String lat = split[3]; String lon = split[5]; [ad_2] solved Extracting two numbers from a string using java

[Solved] How to convert a 2D object array to a 2D string array in C#?

[ad_1] Is this what you are looking for? string[,] prop; //This is a 2D string List<List<string>> mysteryList; if (value is object[,]) { object[,] objArray = (object[,])value; // Get upper bounds for the array int bound0 = objArray.GetUpperBound(0);//index of last element for the given dimension int bound1 = objArray.GetUpperBound(1); prop = new string[bound0 + 1, bound1 … Read more

[Solved] I want to find all words using java regex, that starts with “#” and ends with space or “.”

[ad_1] This one should be the way: #(\w+)(?:[, .]|$) # matches # literally \w is a word with at least one letter (?:) is non-capturing group [, .]|$ is set of ending characters including the end of line $ For more information check out Regex101. In Java don’t forget to escape with double \\: String … Read more

[Solved] Trouble with finding a substring in a string [closed]

[ad_1] Set<String> words = new HashSet<>(); String str = “Java Ruby PHP. Java is good. PHP please looks at Java”; Matcher mat = Pattern.compile(“\\b(\\w+)(?=\\b.*\\1)”).matcher(str); while(mat.find()){ words.add(mat.group(1)); } System.out.println(words); Also you can just split string by words and calculate count using Map. And then filter words with count > 1. 1 [ad_2] solved Trouble with finding … Read more

[Solved] Can not account for an extra line in output

[ad_1] Okay so, I don’t really think there is any error, but I will propose you a modified version of your code, which will be more readable, more efficient, and less error prone: // #include<bits/stdc++.h> I don’t know what that include is, use more specific header based on your needs like #include <string> // for … Read more