java 基本数据类型

java的基本的数据类型一共有8种
Java basic data types are 8

String is not a basic data types, String can be seen as a char array (char [])
Byte byte a signed 8-bit type , Range is (-128 to 127)
Short short a signed 16-bit type,Range is (–32,768 to 32,767)
Int int a signed 32-bit type,Range is (–2,147,483,648 to 2,147,483,647)
Long long a signed 64-bit type,Range is (–9,223,372,036,854,775,808 to 9 ,223,372,036,854,775,807)
Float float IEEE 754 floating point 32 bits , Range is (±1.4E-45 to ±3.4028235E38)
Double double IEEE 754 floating point 64 bits , Range is ( ±4.9E-324 to ±1.7976931348623157E308 )
Boolean boolean only two possible values: true and false
Character char a 16 bit unsigned integer , Range is (0 -- 65535);
每一个都有一个Range（即范围）

/**java-er.comlearn java is so easyBasic Type*/public class BasicType {public static void main(String[] args){byte b = 10; // b < 127 and  b >-128System.out.println(b);short s = 10;System.out.println(s);int i = 3;System.out.println(i);long l = 199999999;System.out.println(l);float f = 2.34f;System.out.println(f);double d = 3.1415926;System.out.println(d);boolean bx = true;System.out.println(bx);char c = 97;  //97 equals 'a'char c1 = 'a';System.out.println(c);System.out.println(c1);}}

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