求输出hello,java world的java程序

我是初学者，希望大家帮忙！！

//带字符串数组的hello,java world!

public class E2_4_1

{ public static void main(String agrs[])

{ String[]str={"Hello"," java"," "," world !"};

int i;

for( i=0;i<str.length-1;i++)

System.out.print(str[i]);

System.out.println(str[i]);

}

}