没有负初值import java.io.*; //利用java 输入、输出类
public class aa
{
public static void main(String args[])
{
char ch=11;
try{ //try语句
ch=(char)System.in.read();
}
catch(IOException e){} //catch语句
System.out.println(ch);
}
}
public class aa
{
public static void main(String args[])
{
char ch=11;
try{ //try语句
ch=(char)System.in.read();
}
catch(IOException e){} //catch语句
System.out.println(ch);
}
}
import java.io.*;
public class Test
{
public static void main(String [] args)
throws IOException{
char c;
System.out.println("please input a char");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
c=(char)br.read();
System.out.println(c);
}
}
{
public static void main(String args[])
{
char ch=11;
try{ //try语句
ch=(char)System.in.read();
}
catch(IOException e){} //catch语句
System.out.println(ch);
}
}
这个程序因该没有问题了
public class tt{
public static void main(String [] args)
throws IOException{
char c; System.out.println("please input a char"); BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
while (br.read() != '\n') {
c = (char) br.read(); System.out.println(c);
}
}
}^_^
char c;
System.out.println("please input a char");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.println("First!");
c = br.readLine().charAt(0);//比较这个 A
System.out.println(c);
System.out.println("Second!");
c = (char) br.read();
System.out.println(c);
c = (char) br.read();//读取了上一次输入的值,这次没有让你输入,与A进行比较。
System.out.println("Last: "+c+" . It read the UP value");