String 14 « string « Java Data Type Q&A

1. string function

What you are saying is like trying to smash an extremely large boulder with an ice pick rather than a sledge hammer because it will take less energy to use the ice pick. You totally ignore the fact that you will probably die before achieving the task with the ice pick. Use the right tool for the job!

2. String help,its urgent...

I have a String like: String str = "1 000.00"; Now I want to get the int/float value from this String but the space between '1' and '0' s needs to be removed,the no. the String has can be arbitrary in length.. What logic should I which would function efficently even for large values...

5. string operation

6. Java String methods

There are methods to turn a string to all uppercase letter or all lowercase letters using String toUpperCase() and String toLowerCase(). Is there a method to invert the cases in a string? For example, String phrase = "4 NoW iS tHe TiMe" Is there a method to invert this string to "4 nOw Is ThE tImE"? ntjava

7. String problem

8. Is it possible to return a string?

9. String Class

Parameters: srcBegin - index of the first character in the string to copy. srcEnd - index after the last character in the string to copy. dst - the destination array. dstBegin - the start offset in the destination array. Throws: IndexOutOfBoundsException - If any of the following is true: * srcBegin is negative. * srcBegin is greater than srcEnd * srcEnd ...

10. string class

13. how to cut a string ?

14. Reflexion on strings

15. Getting single strings from a text area

I'm try to use a textarea(JTextArea or JPaneArea) where I can appended strings, and then have the user enter a number, say like 5, and it gets the 5th string entered in that text area. Yet when I use getText, the whole text are as a string is returned to me. Is there anything that enter strings like an array in ...

16. Behind the String Concept

17. Analizing a String

I need to take a part a string Examples: Y, AB, AC1 List of letters used for revisions: "ABCDEFGHJKLMNPRTUVWY" These are drawing revisions. My class is used to figure out the next revision. So if current is A next is B, if current is AC next is AD, if current is Y next is AA. What I do is send the ...

18. String Formatter in 1.4

19. Looking for some help with string builder

Please think about what you are doing. If you are looking for a character, why is aCharacter declared as an int? You set aCharacter to 0, then never update it, yet you compare it to a different vowel character each time. Do you expect something different to happen even though aCharacter is 0 all the time? You loop through the characters ...

20. String Method

Instead of looking at each offset within base for a match, use String's indexOf() method. You can just keep using it until it reports no match. Your statement of the problem is a little imprecise. For instance if base is "xaxax" and remove is "xax", what should be returned: "ax", "xa", ""?

21. Getting the first part of a string

22. java lang string

23. String operations

24. combobox with strings

25. How separate a string from others

26. String question

The virtual machine will search the pool of String constants that it maintains for a string that is equal to "abc", and will set the variable 'a' to point to the string that it finds. If it doesn't find one in the string pool, it will create a new instance of String that holds that value, add it to the contsants ...

27. String

28. Need help with adding to String members[];

If you don't know the length of the array until after parsing the entire file, you can try creating a list first, and then once you know the final size of the list, you will be able to create the array. If your file is not on the internet, your code will look a little different than the example code you ...

29. working with a String

30. Question about the String class

Did I understood the JLS/Javadoc properly if I say that the String class has got an internal pool of String objects (therefore I expect this pool to be stored in some sort of static variable)? Looking at the intern() method in the String class, this is declared as native, which make me think the whole pooling thing is managed internally by ...

31. return a string

The correct way to do what you want to do is to create a methond in the FileDownload class that returns your string f called getF (or something like that). The other option is to declare String f as public and the main class could should be able to access it by d.f, but this is frowned upon normally.

32. java_String_library

33. String[] to String

/* I am writing this class to see the output of: args.toString(); I want to see if the toString() method on the String[] will convert the array contents into one string or it will write out it's type name, i.e. the Class class' name. As observed, the output is [java.lang.String@1693e2; which looks like the array's underlying type's name and the starting ...

34. String problem

35. Fault in string comparisons?

Hallo. I have the following problem. An XML file, encoded in ISO8859-2, should be presented in a table in a browser's window. The file is "one level deep", something like: animal cat insect ant ...and so on. The resulted table should be (its heading in bold): TYPE NAME animal cat insect ant ... I process the file using methods from 'org.w3c.dom.*' ...

36. string problems

OK well, i take it you don't know what substring does copies part of the string from point1 to point2 anywho putting 0,1 would make it copy only the first character of that string right? which whould be 0. SO then i use an if statement to make sure it's 0 and if it is just make the variable to ...

37. String to OutputStrem

38. string class

All you really need to know is that you should never use == or != to compare two strings; use the equals() method instead. Sometimes == will give the same result as equals(), but that's just an accident of the implementation. Please that is just the basic stuff for comparing strings but if the OP is planning to take SCJA test ...

39. copying a part of a string

40. render string

41. compairing a string to multiple strings

42. string problems

43. Problem with strings

Hi. I have three Strings on a program, and I want them to display in this way: This is a test Where "this" = String1, "is a"=String 2, "test" = String 3 Now, they are displaying like this: This is a Test I am using JOptionPane to make this. Is there any way to accomplish this? Regards.

44. strings

45. strings

46. Help with simple string output..

47. string objects

48. Strings

49. Using a string with If-Else statement

Hello All, I am attempting to write a program which asking for a two char code and then prints out what the code will execute. I tried to use a switch statement and had no success. I am now tring to use a If-Else statement and still can not get the program to recognize the two digit code that the user ...

50. string's

51. binaryString to String?

Sorry to inform you, but I believe the error is not with any of your methods, or your syntax but your algorithm itself. int r = m % d; //attempt to get remainder However, remainders for CRC checks are formed out of polynomial modulo 2 division, and THEN concatenated to the result. In other words, if we were dividing m = ...

52. String class and objects

53. string tokenising

54. About String.....

55. simple string extraction in java

hello, i want to extract text from a string as shown below: ***************************** String inputStr = "some text , some text, some text "; String[ ] splitStr = inputStr.split(","); out.println(splitStr[2]); ************************ therefore as u saw the string is seperated by commas BUT sometimes thereis no need to split because the string can also be a single parameter like this: "some string" ...

56. string input

If i ask a user for a string and then I need to change it to character array how do I do that. What I need to do is count the length of a string that the user inputs. I am not allowed to use predefined methods. I can only use ones that I create. I know I have to use ...

57. Creating Strings

Hello , I am using the book Java Software Solutions 5th editions. At the end of chapter 3, I need to create a project that: prompts for the user's first and last name (seperately), then print a string composed of the first letter of the user's first name, followed by (no more than) the first five characters of the user's last ...

58. String issues

59. A class more rich than String

Hello! I'm trying to do a search function. For now, I'm using String and "contains" operation to compare an input piece of word with other String. I'm looking for an operation like "contains" but having Uppercase and small as equal. Do you know any class whith this kind of operation to compare two Strings? Thank you!

60. Why 2 String Objects are created ??

Why is the line String s2 = "bb" is creating 2 objects ?? (I checked it using DevPartner Java Profiler, which gave me object count). I am using JDK 1.5.0_10 !! I thought String Literals are placed in Literal Pool and further compile time resolvable String objects are created at compile time only (in this case, s2 is compile time resolvable, ...

61. String object

. Strings are immutable.But String s1="Hello"; String s1=s+"World"; S.O.P(s1); means printing "HelloWorld". How ? Well, to understand this you got to know that all objects in Java are represented by references (pointers) to the actual object values. String s1="Hello"; S1 will hold a reference to an object representing "Hello". In s1=s1 + "World"; first a new String object will be created ...

62. Does a new JVM get spawned for every call to main(String[])

Thanks for your help guys. I did some debugging and confirmed the same too. Its just that a senior colleague mentioned that it would spawn a new JVM which i found odd. Its just that we have a 3rd party lib, that provides this (calling main) as the only mechanism to execute it and I am trying to multithread the process. ...

63. Materialize as string?

Hey all I'm trying to write something to a database but with no avail. I've debugged the code and it comes up with a correct Sql insert line (I can run it from my MySql console) - but my app is unable to execute the preparedstatement. The error I get is: unable to materialize as string due to underlying SQLException: com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException: ...

64. strings

65. truncating String

PS: Yuck, another post W-I-D-E post that I need to keep on scrolling left and right to be able to read. Are you using Internet Explorer, then? I'm using Firefox and it puts the code in its own box with a horizontal scroll bar. And it makes the regular text have the normal page width. (Which is the width of my ...

66. incrementing string data ..........

Looks like you are trying to provide a numbering for documents. In our practice we have an integer that is increased and have a pattern for the format (that was alreadu suggested). This way we can have in the number other things like year, month, preffix and suffix without needing heavy (and most probably incorrect) parsing to determine the next number. ...

67. Evaluate a string (graphing calculator)

Hi! I'm trying to make a graphing calculator which can take any equation entered and plot a graph. But the problem is how to evaluate or convert the maths function in the string? e.g. I enter x^2+sin(x), how to convert it? If someone can show me the idea or sample code, that'll be great. Thanks!

68. string comparsion......

69. how can i assign String to another String ??

hi all, i have for example String x =""; and then String y = "jhgkjhgkhjg"; can i say x = y; does this mean x will be equals to "jhgkjhgkhjg"; now aftre this assignment?? as i feel it doesn't change please any body answer me if he can thx in advance D.Roth

70. String

71. How to put "Quotation marks" in a String???

72. new to String

73. less String intensive

74. how to use String []?

Thanks. I don't yet know the difference between List, ArrayList and Vector, but I suspect any of them will do. I want to add strings as rowsData.add(thisrow); It tells me Type safety: The method add(Object) belongs to the raw type ArrayList. References to generic type ArrayList should be parameterized. OK, I agree that I would like to tell it that I'm ...

75. Trouble with Strings in Ifs and Elses in Client

/** * EasyReader provides simple methods for reading the console and * for opening and reading text files. All exceptions are handled * inside the class and are hidden from the user. * *

* Example: * ======= * * EasyReader console = new EasyReader(); * System.out.print("Enter input file name: "); * String fileName = console.readLine(); * * EasyReader inFile ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>76.&nbsp;<a href=''>how big a string can be..?</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>Why would you want to convert the byte array to a String to send to a server. At best this would just slow down the process but it could end up making you run out of memory or even worse it could corrupt the file if you try to use the wrong character encoding. </p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>77.&nbsp;<a href=''>String help</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>78.&nbsp;<a href=''>Help with a string...</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>79.&nbsp;<a href=''>Help! if statements with strings?</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>80.&nbsp;<a href=''>Custom user agent string</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>From your URL, get an HttpURLConnection object. Then use addRequestProperty with key "User-Agent" and whatever value you like. Note however that a 403 doesn't necessarily mean that the server doesn't like your user agent. It could be all sorts of things. By the way, in catch blocks, rather than doing "System.out.println(exception)", you're probably better off doing "exception.printStackTrace()". You'll get more info ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>81.&nbsp;<a href=''>using the getChars method from the string class ?</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>82.&nbsp;<a href=''>public classes or public string</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>hi! i learned that u could only have one pubic class in a java file... s what i do when i need a class that do something a make it a public string. do what i want inside it and return a string which is of no value to me... whats the correct way to do this? </p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>83.&nbsp;<a href=''>String contents</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>Does anyone know how I can find out if a string contains a space? I'm wanting to stop a program when more than one number is entered at the command line, for example entering, java program 17 is fine but if the user entered java program 17 5 7, I want the program to throw an exception and tell the user ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>84.&nbsp;<a href=''>about String</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>85.&nbsp;<a href=''>string problem</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>86.&nbsp;<a href=''>Object [] obj = {"String",10};</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>87.&nbsp;<a href=''>string in java</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>88.&nbsp;<a href=''>A freshman asking help about string</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>I am a freshman in Java programing. I have a problem about string in Java programing. Could you let me know how to randomly generate a string? For example, when I input a string "abcde", then the output could be "acdeb", or "bdace", and so on. In one word, the output should be a random string which are formed by the ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>89.&nbsp;<a href=''>String Class</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>90.&nbsp;<a href=''>Instance name from String</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>91.&nbsp;<a href=''>Question on String class...</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>How the memory is organised in these two situations. Two objects are created in the second case, with one immediately being subject to garbage collection. No, this is not the case. In both cases, the String Object for the literal "hi" is created at compile time, stored in the class file, and loaded into the constant pool when the class is ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>92.&nbsp;<a href=''>Change a string in to chracter</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>93.&nbsp;<a href=''>forgotten Java !!! Manipulating a String</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>Hello all - I totally can't remember how to do this. If I have 2 Strings that I want to put together to form a longer String but - e.g Str1 is 1234 and Str2 is 5678 and I want a longer String of 12345678 how would I do that ? alternatively, when I have a String, 12345678 and I want ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>94.&nbsp;<a href=''>what is string class and string objects</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>95.&nbsp;<a href=''>String operation</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>the length() method returns "8" which is correct. My questions is I want to count the words without spaces. For example if I have "hi there" the program should count "hi" as one word, remove the space(do not count it) "there" as second word and return the length as "2". Is it possible to do this ? A hint would be ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>96.&nbsp;<a href=''>Doubt in String handling...</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>public class StringComp { public static void main(String[] args) { String a = "abc"; String b = "def"; String c = "abcdef"; String d = "xyz"; String e = "xyz"; a+=b; System.out.println("Value of a = :" + a); System.out.println("Value of c = :" + c); System.out.println("Value of d = :" + d); System.out.println("Value of e = :" + e); if(a==c) System.out.println("TRUE"); ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>97.&nbsp;<a href=''>String to Object</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>Hello, I'm trying to find a method or something that let's me know the class of a String that has been created from a StringTokenizer. For example, if I have a string s1 = "3.8"; I'd need something that tells me that this is a Double, or a string s2 = "true" to get a Boolean and so on. I'd need ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>98.&nbsp;<a href=''>string.getChars()</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>I thought it wouldnt make a difference as a byte is 8 bits and so is a char. Works in C programming. Obvouisly java has some management of those arrays behind the scenes so you cant do it. Is there any suggestions on how I can turn a string into a byte array, cant find anything only a byte array into ...</p></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>99.&nbsp;<a href=''>Weird String[][] issue</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3></div></td></tr><tr><td><div class='articleProductElement'><h3 class='articleProductElementTitle'>100.&nbsp;<a href=''>How to return a string</a><span class='articleProductElementHost'>&nbsp;&nbsp;&nbsp;&nbsp;</span></h3><p class='articleProductElementParagraph'>hello dere, I was hoping someone could help me out with a bit of advice. I have an object called 'first page' which brings up a window containing several components. I have another object of a different class called second page and this contains a list. I can click a button (Get Customer) in 'first page' which would call up 'second ...</p></div></td></tr></table></div></div><footer><p class='pull-right'><a href=''></a> &nbsp;|&nbsp;Email:info at;|&nbsp;&copy; Demo Source and Support. All rights reserved.</p></footer></div></body></html>