import java.io.InputStream;import java.io.IOException;public class test{public static void display(InputStream in){try{while(true){int i = in.read();if(i==-1)break;char c = (char)i;System.out.print(c);}}catch(IOException e){e.printStackTrace();}}public static void main(String args[]){display(System.in);}}//输入ctrl+z可以终止输入
//接收输入的字符并转成char Scanner input = new Scanner(System.in); String c = input.next(); System.out.println(c.toCharArray()[0]); //将char字符输出 char cc = 'c'; System.out.println(cc);