问题：

[单选]

public class Yippee { 
public static void main（String [] args） { 
for（int x = 1； x < args.length； x++） { 
System.out.print（args[x] +“ “）； 
} 
} 
} 
and two separate command line invocations： 
java Yippee 
java Yippee 1234 
What is the result？（） 

A .  No output is produced. 123
B .  No output is produced. 234
C .  No output is produced. 1234
D .  An exception is thrown at runtime. 123
E .  An exception is thrown at runtime. 234
F .  An exception is thrown at rijntime. 1234