JobHu

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數據加載中……

Byte in Java

public class ByteTest

{

public static void main(String[] args)

{

byte b;

byte c;

//b = 255; //Cannot convert from int to byte

//b = 0xFF; //Cannot convert from int to byte

b = 127;

c = 0x7F;

if(b == c) System.out.println("b == c");

if(127 == 0x7F) System.out.println("127 == 0x7F");

b = -128;

//c = 0x80; //Cannot convert from int to byte

c = (byte)0x80;

if(b == c) System.out.println("b == c");

if(-128 == 0x80) System.out.println("-128 == 0x80");

if(128 == 0x80) System.out.println("128 == 0x80");

c = (byte)0x80;

if(128 == c) System.out.println("128 == c");

if(-128 == c) System.out.println("-128 == c");

if(128 == (c&0xFF)) System.out.println("128 == (c&0xFF)");

}

輸出:
b == c
127 == 0x7F
b == c
128 == 0x80
-128 == c
128 == (c&0xFF)

posted on 2007-07-17 23:22 Job Hu 閱讀(294) 評論(0) 編輯收藏