ascii value as string to character in java [closed] - java

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I have a String value "\u0004"
I need to convert it to character '\u0004'
I need to store this character back to the string.
How can this be done?


Maybe this is answer you want
// string value that has "\" in front
String s = "\\u0004";
// substring to leave "\u" out
char c = (char)Integer.parseInt(s.substring(2));

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How to take out the numbers from the String and eliminate those number and store the filtered String and print it in java [closed]

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String txt = "d89%l++5r19o7W *o=1645le9H"
System.out.println(t.replace(/\\d{0,}/g,''));

Because i'm bored...
String txt = "d89%l++5r19o7W *o=1645le9H";
txt = txt.replaceAll("\\d", "")
System.out.println(txt);

This will all numerical charactors from string
System.out.println(string.replaceAll("\\d",""));

Replace all √num from a string java [closed]

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I have a string that contains String q = "What's the value of √32 and √83?";, my problem is replacing √num with sqrt(32) and sqrt(83).
That means my string should output : -
What's the value of sqrt(32) and sqrt(83)
is it possible?

Use a regex replacement on the pattern √(\d+)\b, and replace with sqrt(...):
String q = "What's the value of √32 and √83?";
String output = q.replaceAll("√(\\d+)\\b", "sqrt($1)");
System.out.println(output);
This prints:
What's the value of sqrt(32) and sqrt(83)?

I want to convert the string to float [closed]

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I want to convert GBP 29.15* to just 29.15.
Can anyone please help?
I have already tried parsing to integer/float, substring etc. but getting an error.

Try this:
float f = Float.valueOf("GBP 29.15*".replaceAll("[^\\d.]+|\\.(?!\\d)", ""));
It removes all non-number characters and then finds the float value.
See also: How to get float value from string

Format the String data for its key and value using regex into json key-value pair [closed]

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Here is the sammple data which we have to wrap in double quotes "Key":"value" to format :
{Data:{Management:[{individual:{individual_Suffx:,individual_FName:XYZ,individual_LName:ABC,individual_Emplyee_Title:BOARD SECRETARY&PRESIDENT/CEO,individual_Directng_MName:MNO,individual_DOB:1960-05-21},individual_Tin:{},individual_NPI_Id:{},individual_OrgIndvdl:[{Ownrshp_MngngCntrl_EfctvDt:2009-11-30,Ownrshp_MngngCntrl_RoleCd:W},{Ownrshp_MngngCntrl_EfctvDt:2009-11-30,Ownrshp_MngngCntrl_RoleCd:10},{Ownrshp_MngngCntrl_EfctvDt:2009-11-30,Ownrshp_MngngCntrl_RoleCd:15}],Mngng_Mdcr:{}},{Mngng_Indvdl:{Mngng_Indvdl_FName:TIMOTHY,Mngng_Indvdl_LName:TOOLEY,Mngng_Indvdl_MName:C,Mngng_Indvdl_DOB:1958-07-02},Mngng_Tin:{},Mngng_NPI_Id:{},Mngng_OrgIndvdl:{OwnrshpIntrst_MngngCntrl_EfctvDt:2014-05-01,Ownrshp_MngngCntrl_RoleCd:W},Mngng_Mdcr:{}}}}

Not sure if this will cover all corner cases, but this regex should work for your example:
String json = ...
json = json.replaceAll("[^{}\\[\\]:,]+", "\"$0\"");

Insert comma to a string of numbers after specific numbers of digits [closed]

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I have this number
6430134080234080234080200000000
and i want it in this form :
643,01,340802,340802,340802,00000000
My aim is to insert it to a database.

First off, you obviously don't have a number, but a string.
String s = "6430134080234080234080200000000";
You can format it like so:
String formatted = s.substring(0,3) + "," + s.substring(3,5) + "," ...
Note that this only works if the input string is of the same length.

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