Java Generic Class

[ashishsme14]

We had followed code from

https://www.coursehero.com/u/file/90903507/java-genetxt/

java_gene.txt.pdf

But there is an compilation error -

user@workspacejzgt8djbcdjuoa5m:/projects/challenge$ cd StudentGenericClass; mvn compile test; cat target/surefire-reports/*.xml
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Generics For Student 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ StudentGenericClass ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /projects/challenge/StudentGenericClass/src/main/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.5.1:compile (default-compile) @ StudentGenericClass ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 3 source files to /projects/challenge/StudentGenericClass/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/ScoreList.java:[17,37] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentList.java:[29,24] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[18,33] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[28,12] ')' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[28,20] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[28,14] variable declaration not allowed here
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[30,103] not a statement
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[32,1] illegal start of expression
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[32,43] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[32,45] not a statement
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[32,51] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[35,9] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[35,48] ')' expected
[INFO] 13 errors 
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.975 s
[INFO] Finished at: 2021-05-25T02:17:44+00:00
[INFO] Final Memory: 21M/784M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.5.1:compile (default-compile) on project StudentGenericClass: Compilation failure: Compilation failure:
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/ScoreList.java:[17,37] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentList.java:[29,24] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[18,33] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[28,12] ')' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[28,20] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[28,14] variable declaration not allowed here
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[30,103] not a statement
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[32,1] illegal start of expression
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[32,43] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[32,45] not a statement
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[32,51] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[35,9] ';' expected
[ERROR] /projects/challenge/StudentGenericClass/src/main/java/com/fresco/StudentClass.java:[35,48] ')' expected
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
cat: 'target/surefire-reports/*.xml': No such file or directory

Student Class code is

package com.fresco;
import java.text.DecimalFormat;
public class StudentClass {
 public String getQuery(String studentData,String query){
 DecimalFormat df = new DecimalFormat("#.00"); 
 switch(query.charat(0)){
 case '1':
 String firstChar = query.split(",")[1];
 String[] students = studentData.split(" ");
 StudentList<String> studentList = new studentList<String>();
 for (String student : students){
 studentList.addElement(student);
 }
 return studentList.beginsWith(firstChar);
 case '2':
 String[] bloodGroups = query.split(",")[1].split(" ");
 String reqBloodGroup = query.split(",")[2];
 StudentList<String> studentData.split(" ");
 String[] students2 = studentData.split(" ");
 for(String student: students2){
 studentList2.addElement(student);
 }
 return studentList2.bloodGroupOf(bloodGroups, reqBloodGroup);
 case '3':
 String threshold = query.split(",")[1];
 StudentList<Integer>scoreList = new StudentList<>();
 String[] score = studentData.aplit(" ");
 if ( score: scores){
reList.addElement(Integer.parseInt(score));
 String.valueOf(scoreList.thresholdScore(Integer.parseInt(threshold)))+ "students scored " + threshold+ "above";
 st<Double> scoreList = new List<>();
] gpaArr = studentData.split(" "); ing gpa: gpaArr)
{
  s.addElement(Double.parseDouble(gpa));s
  string.valueOf(df.format(gpas.averageValue());
 }
 }
 }
 return null;
 }
}

Score list code is -

package com.fresco;
import java.text.DecimalFormat;
import java.util.ArrayList;
public class ScoreList<T> {
 ArrayList<T> arrayList = new ArraryList<>();
 public void addElement(T element){
 arrayList.add(element);
 }
 public void removeElement(T element){
 arrayList.remove(element);
 }
 public T getElements(int index){
 return arrayList.get(index);
 }
 public double averageValues(){
 double total =0;
 for(int i =0 ; i < arrayList.get(i));
 {
 total +=((Double)arrayList.get(i));
 }
 return total/arrayList.size();
}
}

[raisahab9125]

Ya sure

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This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

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