1. String vs Integer.toHexString forums.oracle.com |
2. How to seperate a String into multiple ints forums.oracle.com |
3. STRING VS INTEGER forums.oracle.com |
4. Help with string and int mismatch??? forums.oracle.com |
5. How to create a formated String from an int ? forums.oracle.com |
6. Exception Handling: String entered instead of an Integer forums.oracle.com |
7. Question about reading a string or integer at the command line. forums.oracle.comNow I know java doesn't have something like scanf/readln buillt into it, but I was wondering what's the easiest, and what's the most robust way to add this functionality? (This may require two separate answers, sorry). The reason I ask is because I've been learning java via self study for the SCJA, and last night was the first time I ever ... |
8. Replacing String month with type Int - What to do!?! forums.oracle.comsomething like that, except you will already have the month "number" and you would want to use that as an the index, what you want to get out of the array is the month "name" (which is a String), so you need an array of Strings. But that is beside the point. If you haven't covered arrays, then don't use them. ... |
9. int to string forums.oracle.com[quote] If I have to count the number of digits in the integer, like here it is 8,then how can this be done?? [/quote] You can't. When you store 00000567 in integer i, it only preserves the numerical value. The leading 0s are lost. The only way to preserve the leading 0s is to first store the value in a String ... |
10. why the typecasting from string to int is diffrent from others forums.oracle.com |
11. Int to String forums.oracle.com |
12. can i turn a series of integers such as 1000-1200 into a string to check forums.oracle.comIf your number x is in the range 1000-9999, then why don't you work with the original ints? int a = x % 10; // rightmost digit int b = (x % 100 - a) / 10; // second rightmost digit int c = ...; int d = ...; being x composed by the digits [ d ] [ c ] ... |
13. can i turn a series of integers such as 1000-1200 into a string to check forums.oracle.comAfter 8 hours of the previous solution wrangling, I think your idea is superior. in 2hrs Ive come up with this so far as an engine to generate the numbers 1000-9999, im no math programmer but im not gonna stop on this till i get it.I do feel as though im measuring around the worl and subtracting my measurement from the ... |
14. Int into String and then back forums.oracle.com |
15. creating Strings from ints forums.oracle.com |
16. integer to string forums.oracle.com |
17. Read integers from Strings forums.oracle.comI have seen plenty of people complain how useless their teacher is and the most often response is that the OP is useless and just because they don't understand they blame the teacher. However, it amazes me the number of students that don't seem to know about the API. So is it a matter that the teachers haven't explained it to ... |
18. Problem on StringBuffer.append(String.charAt(int)) in jdk1.5 forums.oracle.com |
19. How do I change a String to an int? forums.oracle.comThis seems easy enough, but for some reason, I keep getting red lines and compile errors. String array[] = ((String)arguements[0]).split("/"); int year = (int)array[0]; The string I'm trying to use is in a String array. When I go to compile this code, I get this error: "Cannot cast from String to int" Thanks for any help. |
20. How to check if a string contains integer? forums.oracle.comWhat do you think parseInt does? It has to check all the characters--or at least until it hits a non-int one. A manual check of the characters will be (or can be made to be) at least as fast as parseInt. If you really trying to squeeze out performance, you could maybe use an array and also store the length of ... |
21. String to integer forums.oracle.com |
22. How to get an int from a String? forums.oracle.comI'm making a method where I'm iterating through a textfile in the form: greed = 10 health = 15 etc. Now I put every line in an ArrayList. So now I need to get the int value out of index i for example. So let's say health = 15 is at index 11 in the ArrayList. How to get the int ... |
23. strings to int forums.oracle.com |
24. Determining the Largest Integer in a String forums.oracle.comI have an interface where 20 digits (0-9) are entered into a text field. When the 'Enter' key is pressed I want to output the largest digit in that string. e.g. If '11111111111111111119' was entered I want to output 'The largest digit in that string is "9" Is there a specific method to achieve this or will I need to use ... |
25. Int to String problem... forums.oracle.com |
26. String to int forums.oracle.com |
27. Changing an Int to a String forums.oracle.comHullo everyone, I'm a new programmer and would really appreciate some help with a project I'm working on for school. Basically I've created a game where you can set your co-ordinates and from there, move around and collect items which also have their respective co-ordinates. All of this I've achieved through getX and setX style methods in their respective classes. My ... |
28. String and int questions forums.oracle.comSo there are mainly two things that I'm trying to do in order to get some practice coding and overall knowledge about syntax and what not. First, I tend to write code to solve math formulas, but Im kinda stuck on one thing. Allot of algebra related things might have me combine like terms in order to go to the next ... |
29. add integer , boolen into |
30. Change string to integer. forums.oracle.comI'm trying to change a string to an integer but my code isn't playing nice. I'm using (for example): Integer.parseInt(" 15") I've tried printing this to screen and it doesn't give me anything. Is there any way to get rid of the white space characters from a string? I can't use substring() as I have numbers up to 20,000 and I ... |
31. Finding an integer in string forums.oracle.comlet say i have string like string s = "Page (34).jpg" now i want to take the 34 as integer.. i do loop form char 1 to s.length(), i get the string substring substring will always return string, but how to know whether the substring is string or integer is there any method in java, like isInteger and return boolean? Thanks ... |
32. String equality forums.oracle.comOk, kind of a noob to Java. I defined a class called Constants which is full of things like this public static final String MSR_OUNCES = "ounces"; Then I have a class with a setter/getter UnitsOfMeasure. So I set it... myClass.setUnitsOfMeasure(Constants.MSR_OUNCES); Later, I check to see what the unit of measure is: if (myClass.getUnitsOfMeasure() == Constants.MSR_OUNCES) // do stuff This does ... |
33. String to int forums.oracle.com |
34. String & Int in Bean forums.oracle.comBigXXXXXwhatever...... what do you mean by that code does not belong in the bean. I've seen my example duplicated in many exampls and in books. I'm not to concerned if it has to be duplicated in every bean and int, it's not what i was asking. In terms of the fomatting errors, what errors? Do i need to correct something? Thanks ... |
35. String to Integer forums.oracle.com |
36. String to Int, please help forums.oracle.comAre you just playing around with the scripting engine in preparation to larger things, or is this simply a question on how to parse a String to int? I hope it is the first. If the second, however, look at the Integer.parseInt(String) method. Edit: Okay, the input should be able to be formula as well. Nevermind. I still think trying to ... |
37. int and String forums.oracle.comscottjsn wrote: If it is true that String ref = "abc"; will create an object on the heap and also create a reference ref to represent the object which carries the value of "abc". Now, for int i = 100; how to interprete it? Where is the value of 100 stored? String and int are types. You declare variables of a ... |
38. Making a string into an int. forums.oracle.comDo you have any idea about data types and their casting? You should probably read about it. For your problem You can use the regular expression. And if you can not use the regular expression then probably you can write a method to check where a given character is a digit or not. and then you can loop through the character ... |
39. next.Int and intParse, String and Int forums.oracle.comProject2 h = new Project2(); //This area is for this version of Project2 double b = 07; //double b is 7 double d = 12; //double d is 12 double y = 1989; //double y is 1989 double a = 2010-y; //double b is 2010-"birthyear" double m = 220-a; //double m is "220-age" double s = (0.5*m); //double s is "0.5 ... |
40. Find first occurence of an integer in a string forums.oracle.comHi all, I have a number of strings which go something like "MBNA Flow 12a" and I want to separate the integer from the rest of the string so I can parse it, sort the strings into some sort of order according to their integer, and then put it all back together again. The problem I'm having is finding the position ... |
41. Get int from String line forums.oracle.com |
42. If "String[ ]args" is a valid syntax, why "int( )func" is invalid? forums.oracle.comYes, I know Java creators have made String[ ]args as valid for easy understanding and readability but isn't this same procedure can also be followed in functions? I know this is invalid, but if someone asks me this question randomly or in an interview for e.g., then what would be an appropriate answer? Thank You |
43. transforming a string to an integer forums.oracle.comThere are nicer, and more maintainable ways to do this kind of thing than an if ... else if .. else chain, by the way. For example create and initialize a Map |
44. On String Equality (using ==) forums.oracle.com |
45. Append String to Integer forums.oracle.comYour are on the top floor of the Eiffel Tower and a man is trying to climb over the safety netting but having trouble climbing the netting. You ask him why he is doing this and he says he has to get down to the ground as soon as possible but he has an irrational fear of lifts. Do you help ... |
46. Concatenation with integers & strings forums.oracle.comI am new to java and was wondering how to concatenate strings with integers. Do I need to first change an int to its character value before concatenating it with a string? Most of the languages I have used will convert types automatically, but I'm new to Java. I am trying to set up a for/next loop to allow the user ... |
47. logic behind string to integer typecasting.. forums.oracle.com |
48. trying to read integers from command line and then print them as a string. forums.oracle.com |
49. Problem coverting a String to Integer : (see attached code) forums.oracle.comError :- Exception in thread "main" java.lang.NumberFormatException: For input string: "F" at java.lang.NumberFormatException.forInputString(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at SparcsParsing.main(SparcsParsing.java:109) The piece of code above , is to look if dataEl has any null or zero values , if so it should not print those parsed values , using the function substring . Can any one give me an ... |
50. Identifying a String ot int? forums.oracle.com |
51. Typecasting int to String forums.oracle.comHi, I have a bunch of int variables that I need to typecast to a String in order to send over a modem. I don't mean simply converting to ASCII (1 => "1") but a proper bit-by-bit cast, e.g. 65 => 00000000 00000000 00000000 01000001 => four-byte string "(NUL)(NUL)(NUL)A" Google has failed me on this, so I'm assuming either it's trivial, ... |
52. Checking for Int in Strings forums.oracle.comHello, i have an input from a text file that reads: 1 create table student create table 1212 3 create table student 4 enough! basically i need to output the same thing, but only print the line if it has a number at the beginning. If there is no number, an exception is thrown that prints another a message. public void ... |
53. Extracting integer from a text string forums.oracle.comIt's really late here, so I'm to tired to think properly, but I'd recommend that you have a look at the String class in the API. Look at the substring and indexof methods. You should be able to get the index of "(" and "," and ")". So extract substrings from the string using these methods. Then take a look at ... |
54. storing strings grouped with ints?! forums.oracle.comI was wondering what would be the best way to store this data.... I have a collection of ints relating to different things, and im using an array to order them. so, for example; int attribute1[] = new int[10] int attribute2[] = new int[10] etc. However, i also have some data that are ints, but also are grouped with a string. ... |
55. simple question: Creating a string from two integers forums.oracle.com |
56. integer to string forums.oracle.comWhenever you declare an integer variable with leading zeros it's pretty stupid, because first of all it's just odd and second integers are never ever interpreted with leading zeros. So 001 is simply just 1 as integer. If you need a String with leading zeros, why do you declare an integer with leading zeros then and not just the string. Or ... |
57. trying to get ints out of a string forums.oracle.comim stuck at the while because i need the scanner to scan the input string and pull the integers out into the array sides. all the data and stufff like that is formatted just fine im sure of that. what i need to do now is pull apart a string based upon if it has integers and then put those integers ... |
58. Two Quick Questions Involving String equality and Concatenation forums.oracle.comHave a look at your find method. It will only ever return true if you are searching for the last word. Why? Imagine the word you are looking for is the first one in the hashArray. Your if statement should set found to true. Then it loops around and looks at the second word which is not the word you are ... |
59. two Strings equality check? forums.oracle.comString's equals() method returns true when two strings have the same contents: ie when they represent the same sequence of characters. What do you mean "its not working"? Perhaps you should post some runnable code. Say what you expect or intend the behaviour to be and what actually happens. The code you post need not be hundreds of lines long: just ... |
60. String to int forums.oracle.com |
61. int manipulation like string forums.oracle.comBitwise opetors can manipulate bits, not digits. Only in the case of a BigDecimal are numbers stored as digits. Certainly you can convert your number to an array of digit values and back again (use a loop to repeatedly get the last digit with % 10 and then divide by ten.) But it's probably simpler to convert to a string. |
62. changing string[] to int forums.oracle.com |
63. string or Integer forums.oracle.comHi all i have used the Scanner to check if this token is string or integer how can i make this checking for the whole file and why when i save it to a file it keep repeating the info You've got an error in your code. Show the code, especially the part that prints the string, and we'll probably be ... |
64. simple question I think, int -> string forums.oracle.comhey I want to declare an objects name but the characters have to be numbers from a loop that changes i.e. for (int x=0;x<=99;x++){ for (int y=0;y<=99;y++){ new cell ""xy"" = (x,y,0); } } i want the 'cells' to be named 01, 02 etc. and have those numbers as shown. Can anyone help please? |
65. How to find integer in String forums.oracle.com |
66. check if integer or string forums.oracle.commore question about the scanner does it read from a file?? i have something strange when i try to save the output to a file it does repeate it more thatn 20 times and each time in each row the data is repeate one more i.e first row Mary 33 London 410 second row Mary 33 London 410 Mary 33 London ... |
67. break up a String based on int rules forums.oracle.comHi, say I have a String of varying length due to user input. what's the best way to split it in to separate strings of max lengths 29, 29, & 25. There is always a chance that the String could be less than 29 or somewhere in the niddle like length 45 where the last Sring won't be created. What's the ... |
68. Finding an integer in a string forums.oracle.comI'm looking for suggestions on the best way to find a number in a string, pull it out and convert it into an integer. I know that the string class has a lot of available methods, but none seem to be what I need. I thought about using the getChar method http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html#getChars(int,%20int,%20char[],%20int) making the string into an array of characters and ... |
69. Picking an int from a string forums.oracle.comThat depends on your requirements and preconditions. If you require that there's a name followed by five numbers, and it's all separated by spaces, then you can just call scanner.next() to get the string, and then call scanner.nextInt() five times to get the scores. If the format of the line can vary, then you'll have to specify the detailed rules in ... |
70. Taking an int out from a string forums.oracle.com |
71. adding integers to strings forums.oracle.comSystem.out.println("you have " + heads + " heads and " + noses + " noses"); System.out.println("The computer guesses you have " + guess + " limbs"); organs = "twenty-five"; System.out.println("Answer: \n\t" + organs.equals(guess)); System.out.println("in total you have:\n\t twenty-five limbs!"); System.out.println("hmm.. how many characters are there in twenty-five?"); int length = organs.length(); System.out.println("there are " + length + " charachters in " ... |
72. int to string forums.oracle.com |
73. string to int forums.oracle.com |
74. Creating consistant integer from a string forums.oracle.comI am in lookout for the mechanism to create unique integer from string. I have list of strings representing specific piece of information. But client will be able to query the value by using an integer value. (Client can not use string to query). So I need to convert all these strings (Max size 256 bytes) to unique integer number (4 ... |
75. String to int... forums.oracle.com |
76. Sending a String and Int in the same datagramPacket forums.oracle.comHi I am trying to send a String and an Int number over a UDP socket in a byte array using a DatagramPacket to a server program from a client program. On the server end I need to split the byte array up and change the value of the Int number and then resend the String and Int back to the ... |
77. Finding the position of an integer in a string forums.oracle.comI haven't done much Java programming for the past 3 months, but I'm trying to get back into it now, but I'm having some trouble. I'm trying to break up a string of integers, to store each individual integer in an array. So, if I had something like 132412344, a for loop would put them all into separate arrays. I know ... |
78. Workbook.copySheet(int,String,int) returns null; forums.oracle.comHi All, As jxl library is freely available on sourceforge.net that we use to create .xls files. My Question is how would we copy the sheet to a new sheet in the same workbook Example: Workbook temp = Workbook.getWorkbook(new File("test.xls")); WritableWorkbook wb = Workbook.createWorkbook(new File("Output.xls"),temp); wb.copySheet(0, "vinay", 2); wb.write(); wb.close(); Here wb.copySheet(0, "vinay", 2) returns null, instead of creating the new ... |