quiz4_5.java

北京大学出版社的

import java.lang.*;
import java.util.StringTokenizer;
package mypackage;
public class Quiz4_5 {
   public static void main( String[] args ) {
      String a = "Hello World!";
      StringTokenizer st
         = new StringTokenizer( a );
      String token1 = st.nextToken();
      System.out.println( token1 );
   }
}