//編寫一個java程序，從字符串"wellcom to Beijing"中提取單詞"well"和"Beijing".

package a;

public class Student{

public static void main(String[] args) {

? ?

String a="wellcom to Beijing";

String d= a.substring(0,7);/*下標(biāo)一定要對*/

String c= a.substring(a.lastIndexOf(" ")

);/*下標(biāo)一定要對,a.lastIndexOf(" ")表明截取空格后面的字符*/

System.out.println("提取單詞well:"+d);

System.out.println("提取單詞Beijing:"+c);

? ? ? ??

? ? }

}