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String in Java can we convert "Hello" into Hello

Hello all I an new to java I just want to know that can we convert "Hello" in Hello. I have gone through the internet answers but found that if any string has "" in that so we can use the replace method of java. So I just want to convert the "Hello" into Hello. So if you know please help
suppose
String s="Hello"
//Required Operation
System.out.println(s);//It should print Hello.
So if you know please help me. Actually I have a file which contains lots of data having " " and I only want that data without double quotes so is it possible to convert that.

Here is an example:
String s = "\"hello\"";
String result = s.replaceAll("\"", "");
System.out.println(result);
Actually if you declare your string String s="Hello", the variable s will not contain any quotes, because the quotes are Java syntax and mark the start and end of the String.

Use String.replaceAll()
str = str.replaceAll("\"", "");

As all the other answers you're able to use:
str = str.replaceAll("\"", "");
But their is another solution if you just want to erase the 1st and last char of your string ( so your " here) is to use substring like:
str = "Hello";
str = str.substring(0,str.length()-2);
I think that it could work for you

Replace String variable with exact string

If i want to replace one string variable with exact string in java, what can I do?
I know that replace in java , replace one exact string with another, but now i have string variable and i want to replace it's content with another exact string.
for example:
`String str="abcd";
String rep="cd";`
Now I want to replace rep content with"kj"
It means that I want to have str="abkj" at last.

If I understand your question, you could use String.replace(CharSequence, CharSequence) like
String str="abcd";
String rep="cd";
String nv = "kj";
str = str.replace(rep, nv); // <-- old, new
System.out.println(str);
Output is (the requested)
abkj

i think he wants:
String toReplace = "REPLACE_ME";
"REPLACE_ME What a nice day!".replace(toReplace,"");
"REPLACEME What a nice day!".replace(toReplace,"") results in:
" What a nice day!"

Splitting string into substring in Java

I have one string and I want to split it into substring in Java, originally the string is like this
Node( <http://www.mooney.net/geo#wisconsin> )
Now I want to split it into substring by (#), and this is my code for doing it
String[] split = row.split("#");
String word = split[1].trim().substring(0, (split[1].length() -1));
Now this code is working but it gives me
"wisconsin>"
the last work what I want is just the work "wisconsin" without ">" this sign, if someone have an idea please help me, thanks in advance.

Java1.7 DOC for String class
Actually it gives you output as "wisconsin> " (include space)
Make subString() as
String word = split[1].trim().substring(0, (split[1].length()-3));
Then you will get output as
wisconsin
Tutorials Point String subString() method reference

Consider
String split[] = row.split("#|<|>");
which delivers a String array like this,
{"http://www.mooney.net/geo", "wisconsin"}
Get the last element, at index split.length()-1.

String string = "Enter parts here";
String[] parts = string.split("-");
String part1 = parts[0];
String part2 = parts[1];

you can just split like you did before once more (with > instead of #) and use the element [0] istead of [1]

You can just use replace like.
word.replace(char oldChar, char newChar)
Hope that helps

You can use Java String Class's subString() method.
Refer to this link.

Java simple regex with hyphen

I'm trying to do something seemingly simple. I have meta-data with this format
-key=value
I've already split the string at the = but I need to take the - off. I'm trying to use this function key.replaceFirst("-", ""); but it doesn't do anything to the string.
I've tried putting \\ in the regex but that solved nothing.
Solution:
I did not say key = key.replaceFirst("-", "");

You need to assign back return value of replaceFirst as String is immutable object:
key = key.replaceFirst("-", "");

String.replaceFirst does not replace the string in-place, but returns a replaced string.
You need to assign back the return value:
key = key.replaceFirst("-", "");

You are not assigning the string back to it !
key = key.replaceFirst("-", "");
System.out.println(key);
HTH,
Keshava.

How to get specific string out of long string

I have the following String (it is variable, but classpath is always the same):
C:.Users.mho.Desktop.Eclipse.workspace.GIT.BLUBB...bin.de.test.class.mho.communication.InterfaceXmlHandler
and I want to get just
de.test.class.mho.communication.InterfaceXmlHandler
out of this string. The end
InterfaceXmlHandler
is variable, also the beginning before 'de' and the path itself is variable too, but
de.test.class.mho.
isn't variable.

Why not just use
String result = str.substring(str.lastIndexOf("de.test.class.mho."));

Instead of splitting you could get rid of the beginning of the string:
String input = "C:.Users.mho.Desktop.Eclipse.workspace.GIT.BLUBB...bin.de.test.class.mho.communication.InterfaceXmlHandler";
String output = input.replaceAll(".*(de\\.test\\.class\\.mho.*)", "$1");

You can create a string-array with String.split("de.test.class.mho."). The Array will contain two Strings, the second String will be what you want.
String longString = ""; //whatever
String[] urlArr = longString.split("de.test.class.mho.");
String result;
if(urlArr.length > 1) {
result = "de.test.class.mho." urlArr[1]; //de.test.class.mho.whatever.whatever.whatever
}

You can use replaceAll() to "extract" the part you want:
String part = str.replaceAll(".*(?=de\\.test\\.class\\.mho\\.)", "");
This uses a look-ahead to find all characters before the target, and replace them with a blank (ie delete them).
You could quite reasonably ignore escaping the dots for brevity:
String part = str.replaceAll(".*(?=de.test.class.mho.)", "");
I doubt it would give a different result.