Interpreting a string variables value & returning a constants int value

Let's say I have the following:
private string ballColour;
private static final int RED = 1;
the value of the variable ballColour is obtained via keyboard input from the user.
lets say they enter in the string red (or RED, whatever case, it's converted to lowercase & stored in ballColour).
I now want to create a method which returns the integer value of the RED constant (i.e. if the user enters a ballColour of red, I want to return the integer value 1 - to a new variable called intValueOfBallColour).
I've no idea how to do this & i'm sure it isn't that complicated, but I'm having trouble with incompatible data types.
Please help!

Hmm...not really.
I have a class & a driver (though the driver really
only contains the system.out.println & gets the
user's input).
The class should be doing all the work & whilst our
code is somewhat similar, i.e. same kind of
principle, it differs quite a bit.
For example, I'm not sure what this section of your
code is for:
public static void main(String[] args) {
ballColour = args[0];
setIntValueOfBall();
System.out.println("intValuOfBall=" +
Ball=" + intValuOfBall);
My class contains many more methods/constructors.
it really should work. I'll have a look at your code
more & see if i can get it work. It's so
straightforward. So frustrating as well.
Thanks so much for your help.you can post your whole code (between code tags), that'll help people spot the problem

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See the code sample in the following thread (try using upeercase).
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Hi,
I have a doubt about a behavior when assigning a null value to a string variable and then seeing the output, the code is the next one:
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I want to know that if there any possible way to convert String variable value to a Object reference type in java. I'll explain by example if this is not clear.
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Either cast the object to a HelloWorld or use the reflection API (Google it) - with the reflection API you can discover what methods are available.
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Hi All, i'm sorry for the double posting, by mistake it occured.
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Hi Paul,
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Message Edited by Ray Farmer on 09-15-2005 09:14 AM
Regards
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Its suppossed to allow the user to input the student's name, grades for 4 specific subjects. Then take that and organize the students by name alphabetically. It is also suppossed to allow the user to search for users by grades, like find everybody with a GPA of 3.7 or higher or find everybody with a GPA of 3.5. This was a project asigned by my intro computer science teacher. I was suppossed to make it with 2D arrays but that was lousy because you were then limited to a specific number of students without editing the code. I'm not familiar with all the different ways of doing this. My computer science teacher said that I could do it with a HashSet.
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Is there an way to get the value of a local string variable from core dump?

Hi All,
Please help me on this, How to extract the string variable content from the core file.
During core file analysis using dbx, it puts value as CLASS against string local variables.
But I need to know the exact value during the core dump.
I'm able to print other than string variables.
Is this possbile using dbx or is there any other tool can help me on this.
Thanks in advance, please find the code details below:
here is my core details:
(dbx) where -h
current thread: t@74
[1] __lwp_kill(0x0, 0x6, 0x217b8, 0x7f950b94, 0x2, 0x7f0fb944), at 0x7f99fb84
[2] raise(0x6, 0x0, 0x7f0fb958, 0x7f6a5434, 0x1, 0x7f0fb9a4), at 0x7f950b9c
[3] abort(0x7f6bf0f8, 0x4, 0x7f6bf0b8, 0x15360, 0x1, 0x7f6bf0f8), at 0x7f936d10
[4] exregister(0x7f6bf0fc, 0x4, 0x7f6bf0b8, 0x15360, 0x1, 0x7f6a5048), at 0x7f6a504c
[5] exregister(0x7f6bf0f8, 0x7f6a505c, 0x7f6bf0f8, 0x7f6bb080, 0x0, 0x1), at 0x7f6a5060
[6] exregister(0x7f0fbb28, 0x66bd8, 0xe4fd0, 0x7f6bb080, 0x7f6ba780, 0x1), at 0x7f6a4fd8
[7] 0x7f6a5edc(0x7f6bae64, 0x0, 0x66bd8, 0x14cb8, 0x14928, 0x0), at 0x7f6a5edc
=>[8] AreaManager::commitCombine(this = 0xe5234, parsedSetName = CLASS), line 369 in "AreaManager.cc"
[9] TaskDispatcher::combineParsedSet(parsedSetName = CLASS), line 113 in "TaskDispatcher.cc"
[10] CombineExecutor::run(this = 0x1312d8), line 159 in "CombineExecutor.cc"
[11] thread_body(threadObj = 0x1312d8), line 35 in "ThreadUtils.cc"
(dbx)
(dbx) dump
parsedSetName = CLASS
parsedSetCombinedName = CLASS
parserSetBuiltName = CLASS
this = 0xe5234
(dbx)
(dbx) print parsedSetName
dbx: cannot access address 0x7f6690f4
(dbx)
BR//Sahoo

When I was running in a higher version, it gives follwing error:
A loadobject was found with an unexpected checksum value.
When using the same core dump binary, the result are different than the locally build binary
This is the error it pointing now:
if ((ptr = (CHAR *) malloc((unsigned int) size)) == NULL)
(dbx) proc -map
Loadobject mappings for current core file:
0x00010000 /usr/omc/1.8.0.0.56/bin/PmLoader
0x7fb80000 /usr/lib/libaio.so.1
0x7fb30000 /usr/lib/libm.so.1
0x7fbfa000 /usr/lib/libdl.so.1
is being filtered by: /usr/lib/ld.so.1
Warning: checksum in file(a5bd) doesn't match image(a5bf)
0x7faf0000 /usr/lib/libelf.so.1
Warning: checksum in file(38a7) doesn't match image(38a9)
0x7fad0000 /usr/lib/libsocket.so.1
0x7fa00000 /usr/lib/libnsl.so.1
0x7f900000 /usr/lib/libc.so.1
is being filtered by: /usr/platform/SUNW,Ultra-80/lib/libc_psr.so.1
Warning: checksum in file(3b8c) doesn't match image(3ec6)
0x7f890000 /usr/informix/lib/esql/libthsql.so
0x7f830000 /usr/informix/lib/libthasf.so
0x7f7b0000 /usr/informix/lib/esql/libthgen.so
0x7f770000 /usr/informix/lib/esql/libthos.so
0x7f700000 /usr/informix/lib/esql/libifgls.so
0x7f9e0000 /usr/informix/lib/esql/libifglx.so
0x7f6d0000 /usr/lib/libthread.so.1
0x7f500000 /usr/lib/libCstd.so.1
Warning: checksum in file(1fc4) doesn't match image(3f67)
0x7f6a0000 /usr/lib/libCrun.so.1
Warning: checksum in file(1a8d) doesn't match image(b1ea)
0x7fba0000 /usr/lib/libw.so.1
is being filtered by: libc.so.1
0x7f4e0000 /usr/lib/libmp.so.2
0x7f4a0000 /usr/lib/cpu/sparcv8plus/libCstd_isa.so.1
Warning: checksum in file(0fc3) doesn't match image(27d6)
0x7f9d0000 /usr/platform/sun4u-us3/lib/libc_psr.so.1
0x7f410000 /usr/lib/nss_files.so.1
0x7fbb0000 /usr/lib/ld.so.1 [LM_ID_LDSO]
Warning: checksum in file(f2f2) doesn't match image(2a40)
dbx ./PmLoader ./core
For information about new features see `help changes'
To remove this message, put `dbxenv suppress_startup_message 7.5' in your .dbxrc
Reading PmLoader
core file header read successfully
Reading ld.so.1
Reading libaio.so.1
Reading libm.so.1
Reading libdl.so.1
Reading libelf.so.1
Reading libsocket.so.1
Reading libnsl.so.1
Reading libc.so.1
Reading libthsql.so
Reading libthasf.so
Reading libthgen.so
Reading libthos.so
Reading libifgls.so
Reading libifglx.so
Reading libthread.so.1
Reading libCstd.so.1
Reading libCrun.so.1
Reading libw.so.1
Reading libmp.so.2
Reading libCstd_isa.so.1
Reading libc_psr.so.1
Reading nss_files.so.1
WARNING!!
A loadobject was found with an unexpected checksum value.
See `help core mismatch' for details, and run `proc -map'
to see what checksum values were expected and found.
dbx: warning: Some symbolic information might be incorrect.
t@1 (l@1) terminated by signal BUS (invalid address alignment)
0x7f947974: t_delete+0x0068: clr [%o1 + 8]
Current function is Malloc
40 if ((ptr = (CHAR *) malloc((unsigned int) size)) == NULL)
(dbx)
(dbx) where -h
current thread: t@1
[1] t_delete(0x17c980, 0x470, 0x1ef778, 0x7f9bc000, 0x0, 0x0), at 0x7f947974
[2] mallocunlocked(0x414, 0x0, 0x0, 0x7f9bc000, 0x0, 0x0), at 0x7f947004
[3] malloc(0x414, 0xebae0, 0x8, 0xffbfc9a8, 0xffbfc9a0, 0x1a3791), at 0x7f946e38
=>[4] Malloc(size = 1044U), line 40 in "Malloc.c"
[5] Drain_Socket(sc = 0x1ab100, fd = 10, block = 0xffbfce44), line 1648 in "ipc_sockio.c"
[6] Sockio_Refresh(instance = 0x1ab100, fd = 10U, readable = 1, writeable = 0, block = 0xffbfce44), line 3465 in "ipc_sockio.c"
[7] do_Refresh(cid = 10U, readable = 1, writeable = 0, block = 0xffbfce44), line 1238 in "ipc_IO.c"
[8] IO_Refresh(block = 0, file_descriptor = -1), line 685 in "ipc_IO.c"
[9] ipc_receive_message(gid = 0xffbfcf88, reply = 0xffbfd080, buffer = 0x11ae08 "", len = 0xffbfcf34, block = 0), line 313 in "ipc_services.c"
[10] IPCProcessor::receiveMessage(this = 0x1172d0, channelID = 2U, pReplyChannelID = 0xffbfd080), line 312 in "IPCProcessor.cc"
[11] IPCProcessor::mainLoop(this = 0x1172d0, pHandler = 0xf9c28), line 203 in "IPCProcessor.cc"
[12] IPCService::mainLoop(pMediator = 0x1172d0, pHandler = 0xf9c28), line 51 in "IPCService.cc"
[13] main(argc = 3, argv = 0xffbfe1f4), line 91 in "PmLoader.cc"
I got another instance of core dump in same m/c
Edited by: chittusun on Nov 5, 2008 5:19 AM

Pass a value returned from variable to parameter ssis 2012

DECLARE
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sql_variant
=
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Hi,
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Hello,
I'm new here so please let me know if I overstep any of the rules or expectations. I merely want to learn more about Java Programming efficiently, and easily. I can ask and discuss these topics with my online prof, but she doesn't have much time.
So right now I'm trying to solve a problem. It's a typical college level computing problem which I've already turned in. So I'm not looking for someone to do my homework for me or something. It's just that the program didn't work. Even though I probably won't get a very good grade for it, I want to
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Ward 100 54 98 65 35 100
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//Program: Comparison of Class Averages.
import java.io.*;
import java.util.*;
import java.text.DecimalFormat;
public class DataComparison
public static void main (String[] args) throws
FileNotFoundException, IOException
//Step 1
String courseId1; //course ID for group 1
String courseId2; //course ID for group 2
int numberOfCourses;
DoubleClass avg1 = new DoubleClass(); //average for a course
//in group 1
DoubleClass avg2 = new DoubleClass(); //average for a course
//in group 2
double avgGroup1; //average group 1
double avgGroup2; //average group 2
String inputGroup1;
String inputGroup2;
StringTokenizer tokenizer1 = null;
StringTokenizer tokenizer2 = null;
//Step 2 Open input and output files
BufferedReader group1 =
new BufferedReader(new FileReader("a:\\group1.txt"));
BufferedReader group2 =
new BufferedReader(new FileReader("a:\\group2.txt"));
PrintWriter outfile =
new PrintWriter(new FileWriter("a:\\student.out"));
DecimalFormat twoDecimal =
new DecimalFormat("0.00"); //Step 3
avgGroup1 = 0.0; //Step 4
avgGroup2 = 0.0; //Step 5
numberOfCourses = 0; //Step 6
//print heading: Step 7
outfile.println("Course No Group No Course Average");
inputGroup1 = group1.readLine(); //Step 8
inputGroup2 = group2.readLine(); //Step 9
while((inputGroup1 != null) &&
(inputGroup2 != null)) //Step 10
tokenizer1 = new StringTokenizer(inputGroup1);
courseId1 = tokenizer1.nextToken(); //Step 10a
tokenizer2 = new StringTokenizer(inputGroup2);
courseId2 = tokenizer2.nextToken(); //Step 10b
if(!courseId1.equals(courseId2)) //Step 10c
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+ "do not match.");
System.out.println("Program terminates.");
outfile.println("Data error: Course IDs "
+ "do not match.");
outfile.println("Program terminates.");
outfile.close();
return;
else //Step 10d
calculateAverage(group1, tokenizer1, avg1); //Step 10d.i
calculateAverage(group2, tokenizer2, avg2); //Step 10d.ii
printResult(outfile,courseId1,1,avg1); //Step 10d.iii
printResult(outfile,courseId2,2,avg2); //Step 10d.iv
avgGroup1 = avgGroup1 + avg1.getNum(); //Step 10d.v
avgGroup2 = avgGroup2 + avg2.getNum(); //Step 10d.vi
outfile.println();
numberOfCourses++; //Step 10d.vii
inputGroup1 = group1.readLine(); //Step 10e
inputGroup2 = group2.readLine(); //Step 10f
}//end while
if((inputGroup1 != null) && (inputGroup2 == null)) //Step 11a
System.out.println("Ran out of data for group 2 "
+ "before group 1.");
else //Step 11b
if((inputGroup1 == null) && (inputGroup1 != null))
System.out.println("Ran out of data for "
+ "group 1 before group 2.");
else //Step 11c
outfile.println("Avg for group 1: " +
twoDecimal.format(avgGroup1 / numberOfCourses));
outfile.println("Avg for group 2: " +
twoDecimal.format(avgGroup2 / numberOfCourses));
outfile.close(); //Step 12
public static void calculateAverage(BufferedReader inp,
StringTokenizer tok,
DoubleClass courseAvg)
throws IOException
double totalScore = 0.0;
int numberOfStudents = 0;
int score = 0;
if(!tok.hasMoreTokens())
tok = new StringTokenizer(inp.readLine());
score = Integer.parseInt(tok.nextToken());
while(score != -999)
totalScore = totalScore + score;
numberOfStudents++;
if(!tok.hasMoreTokens())
tok = new StringTokenizer(inp.readLine());
score = Integer.parseInt(tok.nextToken());
}//end while
courseAvg.setNum(totalScore / numberOfStudents);
}//end calculate Average
public static void printResult(PrintWriter outp,
String courseId,
int groupNo, DoubleClass avg)
DecimalFormat twoDecimal =
new DecimalFormat("0.00");
if(groupNo == 1)
outp.print(" " + courseId + " ");
else
outp.print(" ");
outp.println("\t" + groupNo + "\t "
+ twoDecimal.format(avg.getNum()));
So my adaptation turned out like this:
//Program: Compute individual and class averages from input file.
import java.io.*;
import java.util.*;
public class Exams
public static void main (String[] args)
throws FileNotFoundException
//Step 1
String nameId; //student name ID for list
int numberOfStudents;
DoubleClass avg = new DoubleClass(); //average for a student
//in list
double avgList; //average for list
//Step 2 Open the input and output files
Scanner group1 = new Scanner(new FileReader("c:\\list.txt"));
PrintWriter outfile = new PrintWriter("c:\\student.out");
avgList = 0.0; //Step 3
numberOfStudents = 0; //Step 5
//print heading: Step 6
outfile.println("NameID List Student Average");
calculateAverage(list, avg); //Step 7d.i
printResult(outfile,nameID, avg); //Step 7d.iii
avgList = avgList + avgList.getNum(); //Step 7d.v
outfile.println();
numberOfStudents++; //Step 7d.vii
outfile.printf("Avg for List: %.2f %n",
(avgList / numberOfStudents));
public static void calculateAverage(Scanner inp,
DoubleClass courseAvg)
double totalScore = 0.0;
int numberOfStudents = 0;
int score = 0;
score = inp.nextInt();
courseAvg.setNum(totalScore / numberOfStudents);
}//end calculate Average
public static void printResult(PrintWriter outp,
String nameId,
int groupNo, DoubleClass avg)
if (list == list)
outp.print(" " + nameId + " ");
else
outp.print(" ");
outp.printf("%9d %15.2f%n", list, avg.getNum());
I guess I was trying to find a shortcut that ended up being a long cut. Here's the algorithm I wrote.
Algorithm
1.) Initialize the variables
2.) Get the student name and his/her accompanying 6 exam scores, limiting the number of scores to 6.
3a.) Calculate score of 6 exams for each student using void method called CalculateAverage.
3b.) Use a loop inside the method to read and sum the six scores.
4.) Use value-returning method CalculateGrade to determine and return each student's grade.
5.) Output each student's grade in void main.
6.) Calculate the average score for all students
7.) Output entire class average
And now I'm trying to piece together code to match each step of the algorithm starting from scratch.
So I got the code for outputting each students grade in void:
public static void printGrade(double testScore)
System.out.print("Line 10: Your grade for "
+ "the course is ");
if (testScore >= 90)
System.out.println("A");
else if (testScore >= 80)
System.out.println("B");
else if (testScore >= 70)
System.out.println("C");
else if (testScore >= 60)
System.out.println("D");
else
System.out.println("F");
This code can read the the file with the scores:
Scanner inFile =
new Scanner(new FileReader("a:\\studentlist.txt"));
PrintWriter outFile =
new PrintWriter("a:\\avg.out");
courseGrade = inFile.nextDouble();
studentName=inFile.nextChar();
while (inFile.hasNext())
studentName= inFile.next().charAt(0);
courseGrade= inFile.nextDouble();
I'm just trying to piece this thing together. Any tips would be appreciated. I will return with more pieces to the puzzle soon. As you can tell it's all kind of disorganized, and scatterbrained. Just trying to find some simplification or distillation, or recommendations.
WR

Hello,
Thanks for your reply. So I take it you are more familiar with Object Oriented Programming more than Procedural Based Programming?
Well the teacher insisted I follow the algorithm instead of trying to adapt another program to the problem. But sometimes that approach saves time I've noticed since many of the code examples we study in Java are like 'the golden oldies'.
The student gradebook problem is repeated over and over in different forms. Maybe if I just approached the problem more linearly:
Algorithm
1.) Initialize the variables
String studentId
int numberOfStudents
DoubleClass avg = new DoubleClass(); //average for a student
double avgGroup: //average for all students2.) Get the student name and his/her accompanying 6 exam scores.
Scanner group = new Scanner(new FileReader("c:\\list.txt"));
PrintWriter outfile = new PrintWriter("c:\\student.out"));
3a.) Calculate score of 6 exams for each student using void method called CalculateAverage using a loop to read and sum the six scores. The loop must be inside the method. It does not output the average score. The sum and average must be returned and output in void main.
method calculateAverage
double totalScore //to store the sum of all the scores of each student
int numberOfExams; //to store the number of
int score; //to read and store a course score
double totalScore = 0.0
int numberOfExams = 0;
int score = 0;3b.) Use a loop inside the method to read and sum the six scores.
Using psuedocode (since the variables have been declared and initialized)
i)get the next student score
RIght here my approach of adapting another program to my new program becomes problematic
the pseudocode here is:
ii) while (score != -999):
I.) update totalScore by adding course score read in step i.
II.) increment numberOfExams by 1
III.) Get the nex student score
iii) studentAvg.setNum(totalScore / numberOfExams);
*What is the purpose of the statement while (score != -999)?*
I don't see why they picked -999? Will this loop allow me to read an endless number of student names and theri accompanying number of exams and then find the average for each student?
I'll go into the next algorithmic steps later.
4.) Use value-returning method CalculateGrade to determine and return each student's grade.
5.) Output each student's grade in void main.
6.) Calculate the average score for all students
7.) Output entire class average
Thanks ahead of time for any suggestions, tips.

Interpreting a string variables value & returning a constants int value

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