something.java

来自「java多线程设计模式源代码」· Java 代码 · 共 11 行

public class Something {
    private boolean initialized = false;
    public synchronized void init() {
        if (initialized) {
            return;
        }
        doInit();
        initialized = true;
    }
    private void doInit() {
        // 实际的处始化动作