【Java學習筆記】控制台讀寫

作者：gnuhpc
出處：http://www.cnblogs.com/gnuhpc/

import java.io.Console;public class ConsoleLogin {    public static void main(String arg[]) {        Console con;        con = System.console();        if(con == null) {            System.out.println("No console available.");            return;        }        String name = con.readLine("name: ");        char pw[] = con.readPassword("password: ");        String password = new String(pw);        System.out.println("The login name is " + name +                           " and the pass word is " + password);    }}======================import java.io.Console;public class ConsoleOutput {    public static void main(String arg[]) {        Console con;        con = System.console();        if(con == null) {            System.out.println("No console available.");            return;        }        int value = 31520;        con.printf("The number %d as hexidecimal is %4X/n",value,value);    }}  注意Console這個類的read和write方法是synchronized，而且console可能不存在（當然，你要是使用cmd或者shell則一定存在），最好使用flush重新整理display

 

作者：gnuhpc

出處：http://www.cnblogs.com/gnuhpc/