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 = 0×7F;
If (c == b) System.out.println ( "b == c");
If (127 == 0×7F) System.out.println ( "127 == 0×7F");

B = -128;
/ / C = 0×80; / / Cannot convert from int to byte
C = (byte) 0×80;
If (c == b) System.out.println ( "b == c");
If (-128 == 0×80) System.out.println ( "-128 == 0×80");
If (128 == 0×80) System.out.println ( "128 == 0×80");

C = (byte) 0×80;
If (c == 128) System.out.println ( "128 == c");
If (c == -128) System.out.println ( "-128 == c");
If (== 128 (c & 0xFF)) System.out.println ( "== 128 (c & 0xFF)");
)
)
Output:
B = c
127 == 0×7F
B = c
128 == 0×80
== C -128
== 128 (c & 0xFF)

Posted on 2007-07-17 23:22 Job Hu Reading (24) Comments (0) edit collections cited

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