Help AVL Tree in JAVA code (remove) question-answer
Hi,
everyone. I have question.
I want codes in Java for AVL Tree.
I but must have remove methods or choose elements.
It`s main for me.
If you know, please write in code JAVA or contact e-mail.
or link to page or if you have self code.
thanks,
regards
[email protected]
I have a better idea.
Why don't you try to do it yourself, and when you get stuck, post your code and details of what difficulty you're having.
When you post code, please use[code] and [/code] tags as described in Formatting tips on the message entry page. It makes it much easier to read.
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Sample Screen Print:
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2 3 4 5 6 7 8 9 10
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21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37
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This is the goal:
Write a program that produces block letters for the following letters which could be read into your program: A, B, C, E, F, G, H, I, L, O, P, T, or U.
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To add to my original topic,
My question is can anybody produce a java program that can do the following:
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Message was edited by:
tawa
Message was edited by:
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Ok here is wher iam stuck.
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REGDETAILVO.executeQuery();
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i have an assignment from the book java programming d.s malik.
problem:
for research purposes and to assist students, the admissions office of your local university wants to determine the performance of the female and male students in certain courses. You receive a file that contains female and male students' GPAs for certain courses. Due to confidentiality, the letter code f is used for female and m is used for male. every file entry consists of a letter code followed by a GPA. each line has one entry. the number of entries in the file is unknown. write a program that computes and outputs the average gpa for both female and male students. format your result to two decimal places.
solution:
this is what i have come up with:
import java.io.*;
import java.util.*;
class Assignment6
public static void main(String[] args)
throws FileNotFoundException
String str,
gender;
double counter = 0;
double counter2 = 0;
double gpa = 0;
double sum1, sum2;
double average1, average2;
Scanner console = new Scanner(System.in);
Scanner inFile = new Scanner(new FileReader("gpa.txt"));
PrintWriter outFile = new PrintWriter("gpa.out");
gender = inFile.next();
gpa = inFile.nextDouble();
while(gender.charAt(0) != 'x')
if(gender == 'm')
sum1+= gpa;
counter = counter + 1.0;
average1 = sum1/counter;
else if(gender == 'f')
sum2+= gpa;
counter2 = counter2 + 1.0;
average2 = sum2/counter2;
System.out.println("The count is " + counter);
System.out.println("The average is = " + average1);
System.out.println("The count is " + counter2);
System.out.println("The average is = " + average2);
outFile.print("There are " + counter + " male students.");
outFile.printf("Average GPA for male students is: " + average1);
outFile.print("There are " + counter2 + " female students.");
outFile.printf("Average GPA for female students is: " + average2);
outFile.close();
}and the text file is
gpa.txt
m 2.4
f 3.2
m 3.7
m 4.0
f 2.9
f 1.8
f 3.8
m 1.7
m 3.4
f 2.6
m 2.8
m 1.7
f 3.7
m 3.9
f 4.0
f 3.6
m 2.3
f 2.9
m 3.0
m 2.7
x
question:
i couldn't compile and run it, i get 2 errors:
M:\School\CSCI - 111 - Classwork\Assignments\Java1\Assignment6.java:29: incomparable types: java.lang.String and char
if(gender == 'm')
^
M:\School\CSCI - 111 - Classwork\Assignments\Java1\Assignment6.java:35: incomparable types: java.lang.String and char
else if(gender == 'f')
thanksokay i did everything, but i still couldn't get it to work. i wonder if im using a wrong solution. or is there anything i didn't know before even proceeding into this?
update:
import java.io.*;
import java.util.*;
class Assignment6
public static void main(String[] args)
throws FileNotFoundException
String str,
gender;
double cntMale = 0;
double cntFemale = 0;
double gpa = 0;
double sumMale = 0, sumFemale = 0;
double avgMale = 0, avgFemale = 0;
Scanner console = new Scanner(System.in);
Scanner inFile = new Scanner(new FileReader("gpa.txt"));
PrintWriter outFile = new PrintWriter("gpa.out");
gender = inFile.next();
gpa = inFile.nextDouble();
while(gender.charAt(0) != 'x')
if(gender.charAt(0) == 'm')
sumMale+= gpa;
cntMale = cntMale + 1.0;
else if(gender.charAt(0) == 'f')
sumFemale+= gpa;
cntFemale = cntFemale + 1.0;
avgMale = sumMale/cntMale;
avgFemale = sumFemale/cntFemale;
System.out.println("The count is " + cntMale);
System.out.println("The average is = " + avgMale);
System.out.println("The count is " + cntFemale);
System.out.println("The average is = " + avgFemale);
outFile.print("There are " + cntMale + " male students.");
outFile.printf("Average GPA for male students is: " + avgMale);
outFile.print("There are " + cntFemale + " female students.");
outFile.printf("Average GPA for female students is: " + avgFemale);
inFile.close();
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I try to write a program about Salary. The user writes(puts in from keyboard)
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