import java.io.*; public class lr{ public static void main(String args[]){ char c='a'; do{
\\System.out.println("Please enter a letter:"); try{ c=(char)System.in.read(); }catch(IOException e){}; switch(c){ case 'L' : System.out.println("Left"); System.out.println("Please enter a letter:"); break; case 'R' : System.out.println("Right"); System.out.println("Please enter a letter:"); break; case '\n': default : System.out.println("Not Known."); System.out.println("Please enter a letter:"); break; } }while(c!='q'); } } 有点麻烦,但是那个问题解决了,各位大虾还有其他什么方法没有。
public class lr{
public static void main(String args[]){
char c='a';
do{
System.out.println("Please enter a letter:"); try{
c=(char)System.in.read();
}catch(IOException e){};
switch(c){
case 'L' : System.out.println("Left");
break;
case 'R' : System.out.println("Right");
break;
default : System.out.println("Not Known.");
break;
}
}while(c!='q');
}
}
public class lr{
public static void main(String args[]){
char c='a';
do{
\\System.out.println("Please enter a letter:"); try{
c=(char)System.in.read();
}catch(IOException e){};
switch(c){
case 'L' : System.out.println("Left");
System.out.println("Please enter a letter:");
break;
case 'R' : System.out.println("Right");
System.out.println("Please enter a letter:");
break;
case '\n':
default : System.out.println("Not Known.");
System.out.println("Please enter a letter:");
break;
}
}while(c!='q');
}
}
有点麻烦,但是那个问题解决了,各位大虾还有其他什么方法没有。