Byte class
Instructions
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byte class
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byte (class octet)
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Value (value)
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It can be a byte value returned by Byte object method byteValue
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Problems encountered
1. The object is named b_0, if it is 0_b be wrong
2.Byte value can not be 36 764. Because Byte class int maximum desirable class 127, more than this number of compiler error. Preferably the minimum -128,
-128 will compile error. -
Byte class also provides four constants:
MIN_MALUE: class byte desirable minimum
MAX_MALUE: byte maximum desirable class
SIZE: byte values used to represent the binary digit complement form
TYPE: byte indicates the type of the basic Class Examples
Source
class Demo{
public static void main(String[] args){
int max_int_0=Byte.MAX_VALUE; //获取Byte类对int类可取最大值
System.out.println("Byte类对int类可取最大值："+max_int_0);
int min_int_0=Byte.MIN_VALUE; //获取Byte类对int类可取最小值
System.out.println("Byte类对int类可取最小值："+min_int_0);
int size_int_0=Byte.SIZE; //二进制补码形式表示byte值位数
System.out.println("Byte类二进制补码形式表示byte值的位数："+size_int_0+"\n");
byte byte_0=36; //初始化byte类byte_0为764
Byte b_0=new Byte(byte_0); //声明Byte对象b_0，且b_0内容为byte_0
System.out.println("Byte对象的值为："+b_0.byteValue()); //输出Byte对象b_0的值，用Value的方法
}
}
operation result
