publicstaticvoidmain(String[]args){AisA=newA();isA.Out();//输出AAisB=newB();isB.Out();//输出BAisC=newC();isC.Out();//输出C}
2.将上述例子中toString方法改为getName,因为在Object类中有toString类,无法测试Person与Man中所匹配的执行方法。 1. public class Test { //例子2 2. public static void 3. new 4. //返回结果为Man 5. } 6. } 7. 8. class 9. 10. class Man extends 11. public 12. "Man"; 13. return 14....
class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClass" value="oracle.jdbc.pool.OracleConnectionPoolDataSource" /> <property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521:orcl" /> <property name="user" value="isc_v10" /> <property name="passw...
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 方式三:实现Callable接口 public class ThreadNewCallable { public static void main(String[] args) throws ExecutionException, InterruptedException { //3 创建Callable接口实现类的对象 IsC isC = new IsC(); //4 将此Callable接口实现类的对象作为参数...
License: ASL 1.1 and ASL 2.0 and BSD and BSD with advertising and GPL+ and GPLv2 and GPLv2 with exceptions and IJG and LGPLv2+ and MIT and MPLv2.0 and Public Domain and W3C and zlib and ISC and FTL and RSA URL: http://openjdk.java.net/ #...
本地启动微服务,直接报错LoggerFactory is not a Logback LoggerContext but Logback…., 查了一番,是logback搞得鬼,打开pom依赖树,搜索logback,发现在spring-boot-starter-web下有间接依赖上logback-classisc,搜索大神们的解答,就是在有这个依赖的dependency中除去他就行了...spring...
LESSON 11. What is Encapsulation in Java and How to implement it? Become a Full Stack Developer in Just 6 Months!Full Stack Java DeveloperExplore Program Encapsulation in Java is a vital component for putting away the information individuals and information techniques for a class together. It is...
*/publicclassDemo01赋值运算符 {publicstaticvoidmain(String[] args){/* * 2.赋值运算符 = += -= *= /= %= * 就是把=右边的常量赋值给=左边的变量(注意的是=左边必须是变量) * 简单说: * 就是把符号左右两边的值进行相运算,然后运算完成后会有结果 ...
","my_data/Java/3.htm"); -d.add("228","221","Class.getResource与ClassLoader.getResource()区别","my_data/Java/Class.getResource与ClassLoader.getResource()区别.htm"); -d.add("229","221","java是否需要显式接口实现(两个接口有相同的方法)","my_data/Java/4.htm"); -d.add("230",...
11.classsubBextendssuperA 12. { 13.intm = 1; //enamel jewelry 14.voidfun() 15. { 16. System.out.println(“This is subB”); 17. } 18. } 19. //定义superA的子类subC 20.classsubCextendssuperA 21. { 22.intn = 1; 23.voidfun() ...