对于所有以波形符号开头的子类〜我想忽略整行
~ public void visitMethod(org.apache.bcel.classfile.Method arg0): 4
我想忽略所有以“〜”
开头的行这是我正在解析的文本文件
gr.spinellis.ckjm.ClassVisitor 13 2 0 14 74 34 2 14 9 0.6042 431 0.8750 1 0.7273 0.2404 0 0 31.5385
~ public void visitMethod(org.apache.bcel.classfile.Method arg0): 4
~ public void registerCoupling(String arg0): 4
~ public void end(): 5
~ public void <init>(org.apache.bcel.classfile.JavaClass arg0, gr.spinellis.ckjm.ClassMetricsContainer arg1): 1
~ public gr.spinellis.ckjm.ClassMetrics getMetrics(): 1
~ private void incRFC(String arg0, String arg1, org.apache.bcel.generic.Type[] arg2): 1
~ public void start(): 1
~ void registerMethodInvocation(String arg0, String arg1, org.apache.bcel.generic.Type[] arg2): 1
~ public void visitField(org.apache.bcel.classfile.Field arg0): 1
~ public void visitJavaClass(org.apache.bcel.classfile.JavaClass arg0): 5
~ void registerFieldAccess(String arg0, String arg1): 2
~ static String className(org.apache.bcel.generic.Type arg0): 3
~ public void registerCoupling(org.apache.bcel.generic.Type arg0): 1
gr.spinellis.ckjm.ClassMetricsContainer 3 1 0 4 18 0 2 3 2 0.0000 66 1.0000 0 0.0000 0.5556 0 0 20.6667
~ void <init>(): 1
~ public gr.spinellis.ckjm.ClassMetrics getMetrics(String arg0): 2
~ public void printMetrics(gr.spinellis.ckjm.CkjmOutputHandler arg0): 3
gr.spinellis.ckjm.MetricsFilter 7 1 0 6 30 11 2 6 5 0.6667 218 1.0000 0 0.0000 0.2000 0 0 29.8571
~ public static boolean isJdkIncluded(): 1
~ static void processClass(gr.spinellis.ckjm.ClassMetricsContainer arg0, String arg1): 3
~ public static void runMetrics(String[] arg0, gr.spinellis.ckjm.CkjmOutputHandler arg1): 2
~ public static boolean includeAll(): 2
~ static void <clinit>(): 1
~ public static void main(String[] arg0): 7
~ public void <init>(): 1
gr.spinellis.ckjm.PrintPlainResults 2 1 0 3 8 0 1 2 2 0.0000 24 1.0000 0 0.0000 0.6250 0 0 10.5000
~ public void handleClass(String arg0, gr.spinellis.ckjm.ClassMetrics arg1): 1
~ public void <init>(java.io.PrintStream arg0): 1
gr.spinellis.ckjm.MethodVisitor 11 2 0 21 40 0 1 21 8 0.5500 209 1.0000 1 0.9474 0.1736 0 0 17.6364
~ public void visitINSTANCEOF(org.apache.bcel.generic.INSTANCEOF arg0): 1
~ public void visitLocalVariableInstruction(org.apache.bcel.generic.LocalVariableInstruction arg0): 2
~ public void visitCHECKCAST(org.apache.bcel.generic.CHECKCAST arg0): 1
~ private boolean visitInstruction(org.apache.bcel.generic.Instruction arg0): 4
~ public void visitInvokeInstruction(org.apache.bcel.generic.InvokeInstruction arg0): 2
~ public void visitReturnInstruction(org.apache.bcel.generic.ReturnInstruction arg0): 1
~ public void visitArrayInstruction(org.apache.bcel.generic.ArrayInstruction arg0): 1
~ public void visitFieldInstruction(org.apache.bcel.generic.FieldInstruction arg0): 1
~ void <init>(org.apache.bcel.generic.MethodGen arg0, gr.spinellis.ckjm.ClassVisitor arg1): 1
~ public void start(): 5
~ private void updateExceptionHandlers(): 3
gr.spinellis.ckjm.CkjmOutputHandler 1 1 0 4 1 0 3 1 1 2.0000 1 0.0000 0 0.0000 1.0000 0 0 0.0000
~ public abstract void handleClass(String,
gr.spinellis.ckjm.ClassMetrics): 1
这是我的完整代码
package javaapplication59;
import java.io.BufferedReader;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;
import javafx.application.Application;
import static javafx.application.Application.launch;
import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.chart.PieChart;
import javafx.scene.control.Button;
import javafx.scene.control.SelectionMode;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TableView.TableViewSelectionModel;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class Javajavaapplication59Table extends Application {
public TableView<Metrics> tableView = new TableView<Metrics>();
private ObservableList<Metrics> dataList = FXCollections
.observableArrayList(
);
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
primaryStage.setTitle("JAVA JAVA JAVA m");
VBox root = new VBox();
TableColumn name = new TableColumn("name");
name.setCellValueFactory(new PropertyValueFactory<Metrics, String>("name"));
TableColumn WMCCol = new TableColumn("WMC");
WMCCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("WMC"));
TableColumn DITCol = new TableColumn("DIT");
DITCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("DIT"));
TableColumn NOCCol = new TableColumn("NOC");
NOCCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("NOC"));
TableColumn CBOCol = new TableColumn("CBO");
CBOCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("CBO"));
TableColumn RFCCol = new TableColumn("RFC");
RFCCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("RFC"));
TableColumn LCOMCol = new TableColumn("LCOM");
LCOMCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>( "LCOM"));
TableColumn ceCol = new TableColumn("Ca");
ceCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("ce"));
TableColumn NPMCol = new TableColumn("NPM");
NPMCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("NPM"));
// CaCol,LCOM3Col,LOCCol,DAMCol,MOACol,MFACol,CAMCol,ICCol,CBMCCol,AMCCol,CCCol,SUB_NAMECol
TableColumn CaCol = new TableColumn("Ca");
CaCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("Ca"));
TableColumn LCOM3Col = new TableColumn("LCOM3");
LCOM3Col.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("LCOM3"));
TableColumn LOCCol = new TableColumn("LOC");
LOCCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("LOC"));
TableColumn DAMCol = new TableColumn("DAM");
DAMCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>( "DAM"));
TableColumn MOACol = new TableColumn("MOA");
MOACol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("MOA"));
TableColumn MFACol = new TableColumn("MFA");
MFACol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("MFA"));
TableColumn CAMCol = new TableColumn("CAM");
CAMCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("CAM"));
TableColumn ICCol = new TableColumn("IC");
ICCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("IC"));
TableColumn CBMCCol = new TableColumn("CBM");
CBMCCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>("CBM"));
TableColumn AMCCol = new TableColumn("AMC");
AMCCol.setCellValueFactory(new PropertyValueFactory<Metrics, Double>( "AMC"));
primaryStage.setScene(new Scene(root));
primaryStage.show();
List<Metrics> metric = readMetricFromCSV("C:\\Users\\hp\\Desktop\\101.txt");
// let's print all the metric read from CSV file
for (Metrics m : metric) {
System.out.println(m);
}
tableView.setItems(FXCollections.observableArrayList(metric));
tableView.getColumns().addAll(name, WMCCol, DITCol, NOCCol, CBOCol,
RFCCol, LCOMCol, ceCol, NPMCol,CaCol,LCOM3Col,LOCCol,DAMCol,MOACol,MFACol,CAMCol,ICCol,CBMCCol,AMCCol);
VBox vBox = new VBox();
vBox.setSpacing(10);
HBox boxc = new HBox();
vBox.prefWidthProperty().bind(root.prefWidthProperty());
boxc.setManaged(true);
boxc.getChildren().addAll( tableView);
vBox.getChildren().add(boxc);
HBox hbox = new HBox();
root.getChildren().add(vBox);
root.getChildren().add(hbox);
}
public List<Metrics> readMetricFromCSV(String fileName) {
List<Metrics> metricsss = new ArrayList<>();
Path pathToFile = Paths.get(fileName);
// create an instance of BufferedReader
// using try with resource, Java 7 feature to close resources
try (BufferedReader br = Files.newBufferedReader(pathToFile,
StandardCharsets.US_ASCII)) {
// read the first line from the text file
String line = br.readLine();
while (line != null && !line.isEmpty()) { // loop until all lines
if (line.contains("~ ")) {
continue;
}
// are read
String[] attributes = line.split(" "); // the file, using a comma as the delimiter first 18 values
Metrics valueOfMetric = createMetric(attributes);
metricsss.add(valueOfMetric); // adding metric into ArrayList
br.readLine();
line = br.readLine();
}
} catch (IOException ioe) {
ioe.printStackTrace();
}
return metricsss;
}
private Metrics createMetric(String[] metadata) {
String name = metadata[0];
int WMC = Integer.parseInt(metadata[1]);
int DIT = Integer.parseInt(metadata[2]);
int NOC = Integer.parseInt(metadata[3]);
int CBO = Integer.parseInt(metadata[4]);
int RFC = Integer.parseInt(metadata[5]);
int LCOM = Integer.parseInt(metadata[6]);
int Ce = Integer.parseInt(metadata[7]);
int NPM = Integer.parseInt(metadata[8]);
int Ca =Integer.parseInt(metadata[9]);
Double LCOM3 =Double.parseDouble(metadata[10]);
int LOC =Integer.parseInt(metadata[11]);
Double DAM =Double.parseDouble(metadata[12]);
int MOA =Integer.parseInt(metadata[13]);
Double MFA =Double.parseDouble(metadata[14]);
Double CAM =Double.parseDouble(metadata[15]);
int IC =Integer.parseInt(metadata[16]);
int CBM =Integer.parseInt(metadata[17]);
Double AMC =Double.parseDouble(metadata[18]);
return new Metrics( name, WMC, DIT, NOC, CBO, RFC, LCOM, Ce, NPM, Ca,
LCOM3, LOC, DAM, MOA, MFA, CAM, IC, CBM , AMC ) ;
}
public class Metrics {
private String name;
private int WMC;
private int DIT;
private int NOC;
private int CBO;
private int RFC;
private int LCOM;
private int Ce;
private int NPM;
private int Ca;
private Double LCOM3;
private int LOC;
private Double DAM;
private int MOA;
private Double MFA;
private Double CAM;
private int IC;
private int CBM ;
private Double AMC;
private int CC;
private String SUB_NAME;
public Metrics( String name,int WMC,int DIT,int NOC,int CBO,int RFC,int LCOM, int Ce, int NPM, int Ca,
Double LCOM3,int LOC,Double DAM,int MOA,Double MFA,Double CAM,int IC,int CBM ,Double AMC ) {
this.name = name;
this.WMC = WMC;
this.DIT = DIT;
this.NOC = NOC;
this.CBO = CBO;
this.RFC = RFC;
this.LCOM = LCOM;
this.Ce = Ce;
this.NPM = NPM;
this. Ca =Ca;
this. LCOM3 =LCOM3;
this. LOC =LOC;
this. DAM =DAM;
this. MOA =MOA;
this. MFA =MFA;
this. CAM =CAM;
this. IC =IC;
this.CBM =CBM;
this. AMC =AMC;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getWMC() {
return WMC;
}
public void setWMC(int WMC) {
this.WMC = WMC;
}
public int getDIT() {
return DIT;
}
public void setDIT(int DIT) {
this.DIT = DIT;
}
public int getNOC() {
return NOC;
}
public void setNOC(int NOC) {
this.NOC = NOC;
}
public int getCBO() {
return CBO;
}
public void setCBO(int CBO) {
this.CBO = CBO;
}
public int getRFC() {
return RFC;
}
public void setRFC(int RFC) {
this.RFC = RFC;
}
public int getLCOM() {
return LCOM;
}
public void setLCOM(int LCOM) {
this.LCOM = LCOM;
}
public int getCe() {
return Ce;
}
public void setCe(int ce) {
Ce = ce;
}
public int getNPM() {
return NPM;
}
public void setNPM(int NPM) {
this.NPM = NPM;
}
public int getCa() {
return Ca;
}
public void setCa(int ca) {
Ca = ca;
}
public Double getLCOM3() {
return LCOM3;
}
public void setLCOM3(Double LCOM3) {
this.LCOM3 = LCOM3;
}
public int getLOC() {
return LOC;
}
public void setLOC(int LOC) {
this.LOC = LOC;
}
public Double getDAM() {
return DAM;
}
public void setDAM(Double DAM) {
this.DAM = DAM;
}
public int getMOA() {
return MOA;
}
public void setMOA(int MOA) {
this.MOA = MOA;
}
public Double getMFA() {
return MFA;
}
public void setMFA(Double MFA) {
this.MFA = MFA;
}
public Double getCAM() {
return CAM;
}
public void setCAM(Double CAM) {
this.CAM = CAM;
}
public int getIC() {
return IC;
}
public void setIC(int IC) {
this.IC = IC;
}
public int getCBM() {
return CBM;
}
public void setCBM(int CBM) {
this.CBM = CBM;
}
public Double getAMC() {
return AMC;
}
public void setAMC(Double AMC) {
this.AMC = AMC;
}
}
}
逻辑问题在于此代码
public List<Metrics> readMetricFromCSV(String fileName) {
List<Metrics> metricsss = new ArrayList<>();
Path pathToFile = Paths.get(fileName); // create an instance of BufferedReader
// using try with resource, Java 7 feature to close resources
try (BufferedReader br = Files.newBufferedReader(pathToFile,
StandardCharsets.US_ASCII)) {
// read the first line from the text file
String line = br.readLine();
while (line != null && !line.isEmpty()) { // loop until all lines
if (line.contains("~ ")) {
continue;
}
// are read
String[] attributes = line.split(" "); // the file, using a comma as the delimiter first 18 values
Metrics valueOfMetric = createMetric(attributes);
metricsss.add(valueOfMetric); // adding metric into ArrayList
br.readLine();
line = br.readLine();
}
} catch (IOException ioe) {
ioe.printStackTrace();
}
return metricsss;
}
答案 0 :(得分：0)
看到我会采用另一种方式。
try(BufferedReader br = new BufferedReader(new FileReader(file))) {
for(String line; (line = br.readLine()) != null; ) {
if(!line.contains("~")){
String[] attributes = line.split(" ");
Metrics valueOfMetric = createMetric(attributes);
metricsss.add(valueOfMetric);
}
}
}
通常，使用否定查找而不是正向查找更容易/更好。通过使用！Line你基本上避免了不必要的继续代码（不是说你不能使用它，但是有更多的区域可以让代码出错）。然后在代码的末尾，您正在使用
br.readline()
line = br.readline()
这本身可能不会破坏您的代码，实际上真的没必要。
因此，此代码将读取到文件末尾，避免空值，并避免使用＆＃34;〜＆＃34;。
答案 1 :(得分：0)
使用univocity-parsers python。它支持在行的开头添加注释字符，并且可以轻松处理输入CSV：
CsvParser