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I got a question states that, "we will give you a string ex:Most of the people are living in apartments and they are rich too. In this given string we have to remove "are" and we have to display the rest things...
I don't know what to do???
By simply using : "Most of the people are living in apartments and they are rich too".replaceAll("are","");
see the documentation
http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#replaceAll(java.lang.String, java.lang.String)
use
"Most of the people are living in apartments and they are rich too".replaceAll("are","")
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I am trying below:
I am trying to process where condition of sql in java. How can I get column name in where condition as a string ?
Ex: String s = "Name_id>=11"
now I want to get "Name_id", as it is a column name and i want to do processing on it.
I know it can be done using regex but I am new to regex and don't know how to do it. can someone guide me??
help will be appreciated, thanks
You can try this
s = s.replaceAll("^(\\w+).+", "$1");
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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'm trying to translate a chess application that I had made in cpp, to java.
In my cpp version I had a structure which created a tree of strings.
Note, it was not a binary tree.
It was a vector of pointers, so from each node I had multiple subnodes stemming from it.
Does any one know how I could create a similar class in java?
public class ChessObject() {
private String description;
private List<ChessObject> subChessObjects;
}
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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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In the apache commons-codec API what is the difference between generating a shaHex, sha256Hex, sha384Hex, sha512Hex?
These are static methods in the DigestUtils class.
These are simply implementations of different algorithms in the SHA family. See this section of the Wikipedia page on SHA for a summary of the differences.
And in fact the javadoc for DigestUtils makes it clear which methods implement which functions.