Thread练习

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题目：现有三个线程，分别用于打印10次A，B，C，现在要求通过代码控制，实现线程按照先后顺序打印出ABCABCABCABCABCABCABCABCABCABC

我写的代码如下：

package com.example.testabc;public class TChar {private char c;public TChar(char c){this.c = c;}public char getC() {return c;}public void setC(char c) {this.c = c;}}

package com.example.testabc;public class PrintA implements Runnable{private TChar currentChar;public PrintA(TChar tchar){this.currentChar = tchar;}private void printChar(){synchronized(currentChar){while(currentChar.getC() != 'C'){try {currentChar.wait();} catch (InterruptedException e) {e.printStackTrace();}}System.out.printf("%c", 'A');currentChar.setC('A');currentChar.notifyAll();}}@Overridepublic void run() {for(int i=0; i<10; i++){printChar();}}}

package com.example.testabc;public class PrintB implements Runnable{private TChar currentChar;public PrintB(TChar tchar){this.currentChar = tchar;}private void printChar(){synchronized(currentChar){while(currentChar.getC() != 'A'){try {currentChar.wait();} catch (InterruptedException e) {e.printStackTrace();}}System.out.printf("%c", 'B');currentChar.setC('B');currentChar.notifyAll();}}@Overridepublic void run() {for(int i=0; i<10; i++){printChar();}}}

package com.example.testabc;public class PrintC implements Runnable{private TChar currentChar;public PrintC(TChar tchar){this.currentChar = tchar;}private void printChar(){synchronized(currentChar){while(currentChar.getC() != 'B'){try {currentChar.wait();} catch (InterruptedException e) {e.printStackTrace();}}System.out.printf("%c", 'C');currentChar.setC('C');currentChar.notifyAll();}}@Overridepublic void run() {for(int i=0; i<10; i++){printChar();}}}

package com.example.testabc;public class TestABC{public static void main(String[] args){TChar cchar = new TChar('C');PrintA pa = new PrintA(cchar);PrintB pb = new PrintB(cchar);PrintC pc = new PrintC(cchar);Thread threadA = new Thread(pa);Thread threadB = new Thread(pb);Thread threadC = new Thread(pc);threadA.start();threadB.start();threadC.start();}}

写得比较繁琐，希望大家可以给出自己的答案，一起分享。

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