Java单例模式详解:如何创建线程安全的Singleton实例
public class Singleton {
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private static final Singleton INSTANCE = new Singleton();
private Singleton() {}
public static Singleton getInstance() {
return INSTANCE;
}
}
public class Logger {
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private static final Logger INSTANCE = new Logger();
private Logger() {}
public static Logger getInstance() {
return INSTANCE;
}
public void log(String message) {
// 实现具体的日志记录逻辑
}
}
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