java ÊäÈëÎÊÌâ - Java / Java SE

ÔõôÓÃScaner´Ó¼üÅÌÊäÈë¶àÐÐÊý¾Ý...È»ºóÒ»ÆðÊä³ö.....
  BufferedWriter f = null;
boolean a = false;
try {
f = new BufferedWriter(new FileWriter("D:/file.text"));
while (!a){
Scanner reader = new Scanner(System.in);
String s1 = null;
s1 = reader.nextLine();
if(s1 == "exit") 
break;
f.write(s1);
}
ÎÊÌâ³öÏÖÔÚÄÄÀï;
  ÇëÖ¸µã!!!!!лл

---

s1 == "exit"¸ÄΪs1.equals("exit")

---

if(s1=="exit")
Äã¸Ä³Éif("exit".equals(s1))
¾Í¶ÔÁË¡£

---

LSÕý½â

---

Java code:

BufferedWriter f = null;
boolean a = true;
try {
f = new BufferedWriter(new FileWriter("D:/file.text"));
while (a) {
Scanner reader = new Scanner(System.in);
String s1 = null;
s1 = reader.nextLine();
System.out.println(s1);
if (s1.equals("exit")){
a=false;
}
f.write(s1);
}
f.flush();
f.close();
} catch (IOException e) {
e.printStackTrace();
}

---

Ò»¶þÂ¥¶¼ÕýÈ·¡£
s1 =