设计模式-单例模式code
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2022-11-06 17:36:33
package singeton;import java.security.SecureRandom;/** * @author Zero * @since 2019-08-13. * Description: */public class HungrySingleton { private sta ......
package singeton;
import java.security.securerandom;
/**
* @author zero
* @since 2019-08-13.
* description:
*/
public class hungrysingleton {
private static final hungrysingleton singleton = new hungrysingleton();
private final int id = new securerandom().nextint();
private hungrysingleton() {
}
public static hungrysingleton getsingleton() {
return singleton;
}
public int dosomething() {
// system.out.println("i'm hungrysingeton " + id + "!");
return id;
}
}
package singeton;
import java.security.securerandom;
/**
* @author zero
* @since 2019-08-13.
* description:
*/
public class lazysingleton {
private static lazysingleton singeton = null;
private final int id = new securerandom().nextint();
private lazysingleton() {
}
public static synchronized lazysingleton getsingleton() {
if (singeton == null) {
singeton = new lazysingleton();
}
return singeton;
}
public int dosomething() {
// system.out.println("i'm lazysingeton " + id + "!");
return id;
}
}