我正在尝试从txt文件的前两行中的内容中读取内容,将其放在字符串上,然后将该字符串传递到我的方法中。我对主要方法中需要做的事情感到困惑。
这是我所拥有的:
public class TestingClass {
Stacked s;// = new Stacked(100);
String Finame;
public TestingClass(Stacked stack) {
//Stacked s = new Stacked(100);
s = stack;
getFileName();
readFileContents();
}
public void readFileContents() {
boolean looping;
DataInputStream in;
String line = "" ;
int j, len;
char ch;
try {
in = new DataInputStream(new FileInputStream(Finame));
len = line.length();
for(j = 0; j<len; j++) {
System.out.println("line["+j+"] = "+line.charAt(j));
}
}
catch(IOException e) {
System.out.println("error " + e);
}
}
public void getFileName() {
Scanner in = new Scanner(System.in);
System.out.println("Enter File Name");
Finame = in.nextLine();
System.out.println("You Entered " + Finame);
}
public static void main(String[] args) {
Stacked st = new Stacked(100);
TestingClass clas = new TestingClass(st);
//String y = new String("(z * j)/(b * 8) ^2");
// clas.test(y);
}
我试过了String x = new String(x.getNewFile())我不确定这是否是正确的方法。
最佳答案
试试这个:
File file = new File("file.txt");
BufferedReader reader = new BufferedReader(new FileReader(file));
String line1 = reader.readLine();
String line2 = reader.readLine();