问Java无界循环

EN

for ( ; ; ) {
   if (condition == true) exit from loop;
} 

for(int i=0;i<10;i++){

}

boolean exit = false;

while(!exit){

 // set exit to true to stop looping
}

for(;;)

BufferedReader br = null;

try {

    br = new BufferedReader(new InputStreamReader(System.in));

    while (true) {

        System.out.print("Enter something : ");
        String input = br.readLine();

        if ("q".equals(input)) {
            System.out.println("Exit!");
            System.exit(0);
        }

        System.out.println("input : " + input);
        System.out.println("-----------\n");
    }

} catch (IOException e) {
    e.printStackTrace();
} finally {
    if (br != null) {
        try {
            br.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}