问题描述
我目前正在使用Java中的数据类型，如果我已正确理解类型 long 接受范围之间的值：-9,223,372,036,854到+9,223,372,036,854,775,807 。现在你可以看到我已经创建了一个名为 testLong 的Long变量，但是当我插入9223372036854775807作为值时，我得到一个错误说明：
I am working with data types at the moment in Java, and if I have understood correctly the type long accepts a value between the ranges of: -9,223,372,036,854 to +9,223,372,036,854,775,807. Now as you can see below I have create a Long variable called testLong, although when I insert 9223372036854775807 as the value, I get an error stating:
我不知道为什么它将 long 数据类型称为 int
I don't know why it is referring to the long data type as an int
任何人都有任何想法？
以下代码：
char testChar = 01;
byte testByte = -128;
int testInt = -2147483648;
short testShort = -32768;
long testLong = 9223372036854775807;
float testFoat;
double testDouble = 4.940656458412;
boolean testBool = true;
推荐答案
添加资本 L 到最后：
long value = 9223372036854775807L;
否则，编译器会尝试将文字解析为 int ，因此错误消息
Otherwise, the compiler will try to parse the literal as an int, hence the error message
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