Java 无法从 int 转换为 boolean？
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Cannot convert from int to boolean?
提问by Nik
public static void main(String[] args) {
int [] newArray= new int [4];
int [] array = {4,5,6,7};
oddEven(array);
newArray[0] = array[0]+array[1]+array[2]+array[3];
newArray[1] = array[0]*array[1]*array[2]*array[3];
}
public static void oddEven(int [] oddEven) {
for (int i=0; i<oddEven.length; i++) {
// Cannot convert from int to boolean
if (oddEven[i] % 2)
}
}
Ignore what I'm trying to manage here. I'm only curious why it doesn't accept "if" statement in this for loop. As I stated it says "cannot convert from int to boolean". Why do you think it says so?
忽略我在这里尝试管理的内容。我只是好奇为什么它不接受这个 for 循环中的“if”语句。正如我所说，它说“无法从 int 转换为 boolean”。你认为它为什么这么说？
采纳答案by Suresh Atta
That expression in side the ifshould be realizes to booleanvalue, otherwise compilation error in java.
里面的那个表达式if应该被实现为boolean值，否则java中会出现编译错误。
Try
尝试
if (oddEven[i] % 2 ==0) {
}
or even (based on requirment)
甚至（根据要求）
if (oddEven[i] % 2 !=0) {
}
See the Language Specification# chapter 14
The Expression must have type boolean or Boolean, or a compile-time error occurs.
表达式必须具有 boolean 或 Boolean 类型，否则会发生编译时错误。
