我創建這個類:如何將在類方法中創建的實例傳遞給同一類中的另一個方法?
class File {
public String path;
public int numberOfLines = 0;
public String[] fileContent;
public File (String file_path) {
path = file_path;
}
public BufferedReader openFile() throws IOException {
FileReader ReadFile = new FileReader(path);
BufferedReader ReadFilePerLine = new BufferedReader(ReadFile);
}
public int countLines() {
String line;
while((line = ReadFilePerLine.readLine()) != null){
numberOfLines++;
}
return numberOfLines;
}
public String[] readLines() {
String[] fileContent = new String[numberOfLines];
for (int i=0; i < numberOfLines; i++){
fileContent[i] = ReadFilePerLine.readLine();
}
}
}
如何獲得countLines()
方法知道的ReadFilePerLine
存在的,如何讓他用呢? (同爲numberOfLines
變量)