菜鸟求教：为什么这个application不能退出循环？

[t427795737]

import java.io.*;

class QuitTest
{
public static void main(String[] args) throws IOException
{
char ch;
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
do
{
ch = (char)br.read();
System.out.println(ch);
}
while(ch != 'q' || ch != 'Q');
}
}

[宋玮-深圳]

while(ch != 'q' || ch != 'Q');

改成&&

[liky5387]

BufferedReader的read（）方法反回的是一个int.你这样写当然不能退出循环了．
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Test {
public static void main(String[] args) throws IOException {
char ch;
String strCh;
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
do {
ch = (char) br.read();
System.out.println(ch);
strCh = String.valueOf(ch);
} while ( !"q".equals(strCh) && !"Q".equals(strCh));
}
}

[lile1988]

你是不是搞了个死循环啊！