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I have java String with more than 160 character, on that i want to create substring form that string for first 150 character.
I have google it for that but what i got is for make substring at special character.
Please show me possible way for do this..
String#substring(int beginIndex, int endIndex) is what you need.
String mySubString = myString.substring(0, 150);
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I have a Vast list of Strings in an ArrayList. I need to compare my input string with the entire list and return the Exact Match or the approximate match. How can I achieve this in Java ?
Compute the hamming edit distance between your search string and each string in your list. Pick the string or strings with the lowest edit distance. If you have to support strings that might need to add or remove characters to match the search string, use the Levenshtein distance..
try=
ArrayList.contains("StringToBeChecked");
If the String is present in the ArrayList, this function will return true, else will return false.
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I have a string array
String[] albumnames;
now how to take a string from particular index position with limited number of charachters.
For example,
if, albumnames[position] have value "abcdefghijk"
then i want to take the first 5 characters only.
That is "abcde".
The substring method of String can be used to achieve this. Try
String s = albumnames[position].substring(0,5);
See substring docs
albumnames[position].substring(0,5);
you can see the methods in String class, like substring, indexof
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I have a question about how to write a regex expression to get the key and value pairs from below string?
{"ReturnCode":"0","ErrorMsg":"success","EncryToken":"##xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"}
Could someone help me learn on what this can be done?
Thanks very much.
This one should suit your needs:
"([^"]+)"\s*:\s*"([^"]+)"
The key is in the first group, the value in the second one.
Visualization by Debuggex
You can use Java JSON or the Google Gson to parse this JSON string ...
as illustrated here - http://answers.oreilly.com/topic/257-how-to-parse-json-in-java/
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I have a text file with a single word say "fish " but it will have spaces after the word. is there anyway I can pull the word fish as a variable but leave off the spaces?
Scanner in = new Scanner(new File("path_to_file.txt"));
String var = in.next();
var = var.trim();
in.close();
Not the most efficient way, but one of the simplest.
string Text = File.ReadAllText("path_to_file.txt").trim();
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I am new to java need help
the main string i have is
eg.
"String1/string2/string3/string4/all_free.sdx"
"file1/file2/string3/string4/all_free.sdx"
the end result i need is to be able to isolate and get string3
i can indexof but not able to achieve it in few steps need brainy people help as i am new to JAVA
If you know it's the third item that you want to get, one simple approach could be using split method, like this:
String myString = "String1/string2/string3/string4/all_free.sdx";
String string3 = myString.split("/")[2];
The call of split("/") produces an array of strings like this:
{"String1", "string2", "string3", "string4", "all_free.sdx"}
Now you can apply the subscript operator to grab the element that you want.