Here, we are creating an object of thestatic nested classby simply using the class name of the outer class. Hence, the outer class cannot be referenced usingOuterClass.this. Example 3: Static Inner Class classMotherBoard{// static nested classstaticclassUSB{intusb2 =2;intusb3 =1;intgetTo...
Example class OuterClass { int x = 10; private class InnerClass { int y = 5; } } public class Main { public static void main(String[] args) { OuterClass myOuter = new OuterClass(); OuterClass.InnerClass myInner = myOuter.new InnerClass(); System.out.println(myInner.y + myOuter...
//inner class example InnerClass innerClass = outer.new InnerClass(); System.out.println(innerClass.getName()); System.out.println(innerClass); innerClass.setValues(); System.out.println(innerClass); //calling method using local inner class outer.print("Outer"); //calling method using anon...
Example 1: Non-static Inner Class public class OuterClass { private String message = "Hello from Outer Class"; class InnerClass { void display() { System.out.println(message); } } public static void main(String[] args) { OuterClass outer = new OuterClass(); OuterClass.InnerClass inner...
Static class object can be created with following statement: 1 2 OuterClass.StaticNestedClass nestedObject = newOuterClass.StaticNestedClass(); 静态嵌套类:如果嵌套类是静态的,则称作静态嵌套类。静态嵌套类只能访问外部类的静态成员。 java inner class: Any non-static nested class is known as inner cl...
}publicclassMy_class2 {publicstaticvoidmain(String args[]) {//Instantiating the outer classOuter_Demo outer =newOuter_Demo();//Instantiating the inner classOuter_Demo.Inner_Demo inner = outer.newInner_Demo(); System.out.println(inner.getNum()); ...
importjava.lang.reflect.Constructor;publicclassMain{publicstaticvoidmain(String[]args)throwsException{// 步骤1:获取外部类的Class对象Class<?>outerClass=InnerClass.class.getDeclaringClass();// 步骤2:获取内部类的Class对象Class<?>innerClass=Class.forName("com.example.OuterClass$InnerClass");// 步骤3:获...
void localInnerMethod() { System.out.println("访问本地变量: " + localVar); } } LocalInnerClass localInner = new LocalInnerClass(); localInner.localInnerMethod(); }// 匿名内部类 public void anonymousClassExample() { Runnable runnable = new Runnable() { @Overrid...
>localInnerClass=Class.forName("com.example.OuterClass$1LocalInnerClass");// 获取内部类的构造函数Constructor<?>memberInnerConstructor=memberInnerClass.getDeclaredConstructor(OuterClass.class);Constructor<?>staticInnerConstructor=staticInnerClass.getDeclaredConstructor();// 使用内部类的构造函数创建对象member...
抽象类(abstract class)和接口(interface)有什么异同? 静态嵌套类(Static Nested Class)和内部类(Inner Class)的不同? Java 中会存在内存泄漏吗,请简单描述。 抽象的(abstract)方法是否可同时是静态的(static),是否可同时是本地方法(native),是否可同时被 synchronized修饰? 阐述静态变量和实例变量的区别。 是否可以...