public static void main(String[] args) { CharBuffer charbuffer1 = CharBuffer.allocate(10); CharBuffer...charbuffer2 = charbuffer1.duplicate(); charbuffer1.put('a').put('b').put('c'); charbuffer1.flip...(); System.out.println(charbuffer1+"--"+charbuffer1.capacity()+" "+charbuffer1.limit()+" "+charbuffer1....position()); System.out.println(charbuffer2+"--"+charbuffer2.capacity()+" "+charbuffer2.limit()+" "...CharBuffer charbuffer2 = charbuffer1.asReadOnlyBuffer(); charbuffer1.put('a').put('b').put('c'
charBuffer1=CharBuffer.allocate(12); //2.wrap() CharBuffer charBuffer3=CharBuffer.wrap...charBuffer2=CharBuffer.wrap(array); curPosition(charBuffer2); charBuffer2.put("嘿嘿嘿"...charBuffer2=CharBuffer.wrap(array); charBuffer2.put("嘿嘿嘿"); if(charBuffer2.hasArray...charBuffer=CharBuffer.wrap("123456"); //缓冲区的复制 CharBuffer duplicate = charBuffer.duplicate...charBuffer=CharBuffer.wrap("123456"); charBuffer.position(5); CharBuffer slice = charBuffer.slice
CharBuffer buffer = CharBuffer.allocate(10); //@1 public static CharBuffer allocate(int capacity) {...2.翻转 2.1 Flip示例 CharBuffer buffer = CharBuffer.allocate(10); String mystr = "ABCDEFGHIG"; for (int i...3.释放 3.1 释放示例 CharBuffer buffer = CharBuffer.allocate(10); String mystr = "ABCDEFGHIG"; for (int i...4.压缩 4.1 压缩示例 CharBuffer buffer = CharBuffer.allocate(10); String mystr = "ABCDEFGHIG"; for (int i...(ob instanceof CharBuffer)) // @1 return false; CharBuffer that = (CharBuffer)ob; if
,容量为20 CharBuffer charBuffer = CharBuffer.allocate(20); //查看当前位置和限制大小,你可以理解为上界...("C postion = " + charBuffer.position() + "limit=" + charBuffer.limit()); //写入字符 charBuffer.put...charBuffer.append("我要更努力"); charBuffer.limit(charBuffer.position()); charBuffer.position...,容量为20 CharBuffer charBuffer = CharBuffer.allocate(20); //查看当前位置和限制大小,你可以理解为上界...charBuffer.append("我要更努力"); //charBuffer.limit(charBuffer.position()); //charBuffer.position
charBuffer = CharBuffer.allocate(8); System.out.println("=========初始化"); System.out.println...("capacity:" + charBuffer.capacity()); System.out.println("position:" + charBuffer.position()...存储"); charBuffer.put('h'); charBuffer.put('y'); charBuffer.put('c');...()) { // System.out.println(charBuffer.get()); //} //标记 charBuffer.mark...()); System.out.println("limit:" + charBuffer.limit()); charBuffer.clear();
一、复制缓冲区 1.复制一个缓冲区 Duplicate示例 CharBuffer buffer = CharBuffer.allocate(10); char[] chars = {'A','B',...2.只读缓冲区 AsReadOnlyBuffer示例 CharBuffer buffer = CharBuffer.allocate(10); char[] chars = {'A','B','C'...3.分割缓冲区 Slice示例 CharBuffer buffer = CharBuffer.allocate(10); char[] chars = {'A','B','C','D','E','F...代码示例 ByteBuffer byteBuffer = ByteBuffer.allocate(10); CharBuffer charBuffer = byteBuffer.asCharBuffer...(); charBuffer.put('A'); 小结:创建字节缓冲区后转换为CharBuffer,然后填充字符A。
在使用JavaNIO实现按行读取文件操作时,可以使用BufferedReader和CharBuffer两个类。...通过BufferedReader获取到通道后,再使用CharBuffer类来按行读取文件中的内容。CharBuffer是JavaNIO中的一个类,它是一个字符缓冲区。...在使用CharBuffer时,需要先将文件中的内容读取到CharBuffer中,然后再按行读取CharBuffer中的内容。...charBuffer = Charset.defaultCharset().decode(byteBuffer);String[] lines = charBuffer.toString().split...然后使用CharBuffer.toString().split方法将CharBuffer中的内容按行分割,然后遍历分割后得到的字符串数组,输出每一行文件内容。
char[] charBuffer = context.charBuffer; int currentOffset = header; int accessFlags = readUnsignedShort...(currentOffset); // 本类名 String thisClass = readClass(currentOffset + 2, charBuffer); // 父类名...String superClass = readClass(currentOffset + 4, charBuffer); String[] interfaces = new String...null : readUTF8(cpInfoOffsets[methodIndex], charBuffer); String type = methodIndex == 0 ?...= context.charBuffer; // Read the access_flags, name_index and descriptor_index fields.
, int length) public final CharBuffer put (char[] src) public CharBuffer put (char [] src, int offset..., int length) public CharBuffer put (CharBuffer src) public final CharBuffer put (String src) public...) public static CharBuffer wrap (char [] array) public static CharBuffer wrap (char [] array,...要分配一个容量为 100 个 char 变量的 Charbuffer: CharBuffer charBuffer = CharBuffer.allocate (100);,我们看他的构造函数: HeapCharBuffer...如果您想提供您自己的数组用做缓冲区的备份存储器,请调用 wrap()函数: char [] myArray = new char [100]; CharBuffer charbuffer = CharBuffer.wrap
new char[base64ArraySize]; Convert.ToBase64CharArray(binBuffer, 0, binBuffer.Length, charBuffer..., 0); var s = new string(charBuffer); return s; }...= base64.ToCharArray(); var bytes = Convert.FromBase64CharArray(charBuffer, 0, charBuffer.Length..., 0); var s = new string(charBuffer); return s; }...= base64.ToCharArray(); var bytes = Convert.FromBase64CharArray(charBuffer, 0, charBuffer.Length
或CharBuffer2 //参数:BufferID --> charBuffer1:0x01 charBuffer1:0x02 //模块返回确认字...//参数: BufferID @ref CharBuffer1 CharBuffer2 //说明: 模块返回确认字,页码(相配指纹模板) u8 PS_Search(u8 BufferID,u16...与CharBuffer2中的特征文件合并生成 模板,结果存于CharBuffer1与CharBuffer2 //说明: 模块返回确认字 u8 PS_RegModel(void) { u16 temp...//参数: BufferID @ref charBuffer1:0x01 charBuffer1:0x02 // PageID(指纹库位置号) //说明: 模块返回确认字 u8 PS_StoreChar...或CharBuffer2中的特征文件高速搜索整个或部分指纹库。
class ChatWebSocket extends MessageInbound { @Override protected void onTextMessage(CharBuffer...} } java部分 import java.io.IOException; import java.nio.ByteBuffer; import java.nio.CharBuffer...{ this.users = users; } @Override protected void onTextMessage(CharBuffer...temp=CharBuffer.wrap(data); user.getWsOutbound().writeTextMessage(temp);...buffer = CharBuffer.wrap(message); this.getWsOutbound().writeTextMessage(buffer);
或CharBuffer2 //参数:BufferID --> charBuffer1:0x01 charBuffer1:0x02 //模块返回确认字...或CharBuffer2中的特征文件搜索整个或部分指纹库.若搜索到,则返回页码。...//参数: BufferID @ref CharBuffer1 CharBuffer2 //说明: 模块返回确认字,页码(相配指纹模板) u8 PS_Search(u8 BufferID,u16...与CharBuffer2中的特征文件合并生成 模板,结果存于CharBuffer1与CharBuffer2 //说明: 模块返回确认字 u8 PS_RegModel(void) { u16 temp...或CharBuffer2中的特征文件高速搜索整个或部分指纹库。
四、 系统资源 缓冲区与指纹库 系统内设有一个 72K 字节的图像缓冲区与二个 512bytes 大小的特征文件缓冲区,名字分别称为:ImageBuffer,CharBuffer1 和 CharBuffer2...CharBuffer1 或 CharBuffer2 既可以用于存放普通特征文件也可以用于存放模板特征文件。...或CharBuffer2 //参数:BufferID --> charBuffer1:0x01 charBuffer1:0x02 //模块返回确认字...与CharBuffer2中的特征文件合并生成 模板,结果存于CharBuffer1与CharBuffer2 //说明: 模块返回确认字 u8 PS_RegModel(void) { u16 temp...或CharBuffer2中的特征文件高速搜索整个或部分指纹库。
val charBuffer = CharBuffer.wrap(b, 1, b.length - 1) while (charBuffer.remaining() > 0) {...sb.append(Integer.parseInt(cp, 16).toChar) charBuffer.position(charBuffer.position() + 6)...sb.append(Integer.parseInt(cp, 8).toChar) charBuffer.position(charBuffer.position() + 4)...appendEscapedChar(c.charAt(0)) charBuffer.position(charBuffer.position() + 2) case...sb.append(charBuffer.get()) } } sb.toString() } } /** the column name pattern in
AtomicReference bodyRef = new AtomicReference(); body.subscribe(buffer -> { CharBuffer...charBuffer = StandardCharsets.UTF_8.decode(buffer.asByteBuffer()); DataBufferUtils.release...(buffer); bodyRef.set(charBuffer.toString()); }); //获取request body
一旦把文件映射到内存缓冲区,我们就可以把里面的数据读入到 CharBuffer 中并打印出来。具体的代码示例如下。...CharBuffer charBuffer = null; ClassLoader classLoader = Cmower.class.getClassLoader(); Path path = Paths.get...然后使用 MappedByteBuffer 中的 put() 方法将 CharBuffer 的内容保存到文件中。具体的代码示例如下。...CharBuffer charBuffer = CharBuffer.wrap("沉默王二,《Web全栈开发进阶之路》作者"); Path path = Paths.get("cmower1.txt"...= null) { mappedByteBuffer.put(Charset.forName("UTF-8").encode(charBuffer)); } } catch (
bufferedReader = new BufferedReader(new InputStreamReader(inputStream)); char[] charBuffer...= new char[128]; int bytesRead = -1; while ((bytesRead = bufferedReader.read(charBuffer...)) > 0) { stringBuilder.append(charBuffer, 0, bytesRead); } } } catch
用于存储不同数据类型的数据 * * 根据数据类型不同(boolean 除外),提供了相应类型的缓冲区: * ByteBuffer * CharBuffer * ShortBuffer *...charBuffer = CharBuffer.allocate(1024); charBuffer.put("还是施爷足智多谋!")...; charBuffer.flip(); //1 编码 CharBuffer -> ByteBuffer 字符流->字节流 ByteBuffer byteBuffer = utf8_encoder.encode...(charBuffer); for(int i = 0;i<byteBuffer.limit();i++) { System.out.println(byteBuffer.get());...} //2 解码 ByteBuffer-> CharBuffer 字节流->字符流 byteBuffer.flip(); CharBuffer charBuffer2 = utf8
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