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´Ó¿ØÖÆ̨ÖжÁÈ¡Êý¾ÝÊÇÒ»¸ö±È½Ï³£ÓõŦÄÜ£¬ÔÚ JDK 5.0 ÒÔÇ°µÄ°æ±¾ÖеÄʵÏÖÊDZȽϸ´Ôӵģ¬ÐèÒªÊÖ¹¤´¦ÀíϵͳµÄÊäÈëÁ÷¡£ÓÐÒâ˼µÄÊÇ£¬´Ó JDK 5.0 °æ±¾¿ªÊ¼£¬ÄÜ´Ó¿ØÖÆ̨ÖÐÊäÈëÊý¾ÝµÄ·½·¨Ã¿Ôö¼ÓÒ»¸ö°æ±¾ºÅ£¬¾ÍÓÐÒ»ÖÖÐÂÔöµÄ·½·¨£¬ÕâÒ²Ôö¼ÓÁËÑ¡ÔñµÄÖÖÀ࣬¿ÉÒÔÒÀ¾Ý²»Í¬µÄÒªÇóÀ´½øÐÐÑ¡Ôñ¡£ÏÂÃæÀ´¿´Ò»Ï£¬¸÷¸ö°æ±¾ÖÐÈçºÎ´Ó¿ØÖÆ̨ÖжÁÈ¡Êý¾ÝÒÔ¼°¸÷×ÔµÄÓÅȱµã¡£
1¡¡JDK 1.4 ¼°ÒÔÏ°汾¶ÁÈ¡µÄ·½·¨
JDK 1.4 ¼°ÒÔϵİ汾ÖÐÒªÏë´Ó¿ØÖÆ̨ÖÐÊäÈëÊý¾ÝÖ»ÓÐÒ»ÖÖ°ì·¨£¬¼´Ê¹ÓÃSystem.in »ñµÃϵͳµÄÊäÈëÁ÷£¬ÔÙÇŽÓÖÁ×Ö·ûÁ÷´Ó×Ö·ûÁ÷ÖжÁÈëÊý¾Ý¡£Ê¾Àý´úÂëÈçÏ£º
 import java.io.IOException;
import java.io.InputStreamReader;
public class Test1 {
public static void main(String[] args) {
String str = readString("ÇëÊäÈë×Ö·û´®£º");
System.out.println("readString ·½·¨µÄÊäÈ룺" + str);
}
/**
* ʹÓÃϵͳµÄÊäÈëÁ÷£¬´Ó¿ØÖÆ̨ÖжÁÈ¡Êý¾Ý<br/>
* ÓÃÓÚËùÓõÄJDK°æ±¾
* @param prompt ÌáʾÐÅÏ¢
* @return ÊäÈëµÄ×Ö·û´®
*/
private static String readString(String prompt) {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = null;
try {
System.out.print(prompt);
str = br.readLine();
} catch (IOException e) {
e.printStackTrace();
}
return str;
}
}

´ÓÉÏÃæµÄ´úÂë¶ÎÀ´¿´£¬ÕâÖÖ¿ØÖÆ̨ÊäÈëµÄ·½·¨·Ç³£µØÂé·³£¬ÎªÁËÄܶÁÈ¡ÕûÐеÄÊý¾Ý£¬²ÉÓÃÁËBufferedReader ÀàÀ´½øÐд¦Àí£¬¶øÇÒÔÚ¶ÁÈ¡µÄ¹ý³ÌÖл¹ÐèÒª²¶»ñIOException ¡£²»¹ýÕâÊÇ JDK 1.4 ¼°ÒÔÏ°汾ÖдӿØÖÆ̨¶ÁÈ¡Êý¾ÝΨһµÄ°ì·¨¡£»¹ÓÐÒ»ÖÖ·Ç¿ØÖÆ̨¶ÁÈëÊý¾ÝµÄ°ì·¨£¬¾ÍÊDzÉÓà Swing ÖеÄJOptionPane £¬»áµ¯³öÒ»¸ö·Ç³£Æ¯ÁÁµÄÊäÈë¶Ô»°¿òÈÃʹÓÃÕßÊäÈëÊý¾Ý£¬µ«ÕâÊÇÒ»ÖֱȽÏÁíÀàµÄ×ö·¨£¬²»ÍƼöʹÓá£
import javax.swing.JOptionPane;
public class Test2 {
public static void main(String[] args) {
String str = readStringfromDialog("ÇëÊäÈë×Ö·û´®£º");
System.out.println("readStringfromDialog ·½·¨µÄÊäÈ룺" + str);
}


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