我希望完成:
String []beef = new String[3];
beef[0] = "Water";
beef[1] = "Chicken";
beef[2] = "Paper";
String empo = Arrays.toString(beef);
if (empo.isEmpty()){
empo = "Nothing";
System.out.println(empo);
}else{
System.out.println(empo);
}
无需创建字符串。
就像是:
String []beef = new String[3];
beef[0] = "Water";
beef[1] = "Chicken";
beef[2] = "Paper";
Arrays.toString(beef); //change beef to just a plain string
if(beef.isEmpty()||beef==""){
no = "Nothing";
System.out.println(beef);
怎么做呢?