import java.net.*; import java.io.*;/*** 與C語言通信(java做Client，c/c++做Server，傳送一個結構)* @author kingfish* @version 1.0*/ public class Employee2 {private String name;private int id;private float salary;/*** 將int轉為低字節在前，高字節在后的int*/private static int toLH(int in) {int out = 0;out = (in & 0xff) << 24;out |= (in & 0xff00) << 8;out |= (in & 0xff0000) >> 8;out |= (in & 0xff000000) >> 24;return out;}/*** 將float轉為低字節在前，高字節在后的int*/private static int toLH(float f) {return toLH(Float.floatToRawIntBits(f));}/*** 構造并轉換*/public Employee2(String name, int id, float salary) {this.name = name;this.id = id;this.salary = salary;}/*** 取得名字，定長byte數組*/public byte[] getName() {byte[] b = new byte[20];System.arraycopy(name.getBytes(), 0, b, 0, name.getBytes().length);return b;}/*** 取得編號(低字節在前)*/public int getId() {return toLH(id);}/*** 取得工資(低字節在前)*/public int getSalary() {return toLH(salary);}/*** 發送測試*/public static void main(String[] args) {try {Employee2 p = new Employee2("kingfish", 123456789, 8888.99f);Socket sock = new Socket("127.0.0.1", 8888);DataOutputStream dos = new DataOutputStream(sock.getOutputStream());dos.write(p.getName());dos.writeInt(p.getId());dos.writeInt(p.getSalary());sock.close();}catch (Exception e) {e.printStackTrace();}} } //end

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