The eight basic data types in Java are: 1. Integer type, including byte, short, int, long; 2. Floating point type, including float, double; 3. Character type (char); 4. Boolean.
The eight basic data types in java:
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1. Integer type
1.byte //字节型 1byte 8位 (-2^7 ~ 2^7 - 1) 例如:byte n = 8; 2.short //短整型 2byte 16位 (-2^15 ~ 2^15 - 1) 例如: short n = 8888; 3.int // 整形 4byte 32位(-2^31 ~ 2^31 - 1) 例如: int n = 88888888; 4.long //长整型 8byte 64位 (-2^63 ~ 2^63 - 1) 例如: long l = 12345678901234567890L;
2. Floating point type
1.float //单精度 4byte 32位(1.4E - 45 ~ 3.4028235E38)例如:float f = 3.14f; 2.double //双精度 8byte 64位(4.9E - 324 ~ 1.7976931348623157E308) java中小数常量默认为double,如果要给float变量赋值则要加F或f
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3. Character type
1.char //字符型 2byte 16位(0 ~ 2^16 - 1) 占两个2字节,存储Unicode值 例如: char n = 'A';
4. Boolean type
1.boolean //boolean为布尔基本类型。
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