以GuoClass这个类为例，在access_flags之后的两个字节是this_class，这个u2类型的数据项用十六进制表示为0x0004，它指向常量池中第4个类型为CONSTANT_Class_info的常量，再根据此常量里的索引值找到常量池中第25个位置保存的CONSTANT_Utf8_info类型的字符串，这个字符串就是我们需要找的全限定名“com/examples/test/...
Class:java.lang.Class java.lang.Objectjava.lang.ClassSerializableGenericDeclarationTypeAnnotatedElementLogicBigMethod:public String getCanonicalName()Returns the canonical name of the underlying class or returns null if the underlying class does not have a canonical name (i.e., if it is a local or...
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// Java program to demonstrategetName() methodpublicclassTest{publicstaticvoidmain(String[] args)throwsClassNotFoundException{// returns the Class object for this classClass myClass = Class.forName("Test"); System.out.println("Class represented by myClass: "+ myClass.toString());// Get the ...
dataType variableName; Explanation: dataType:It talks about the type of data that the variable can hold. Examples of data types in Java include int (for integers), double (for floating-point numbers), string (for text), and more.
className object = new className(); // for Bicycle class Bicycle sportsBicycle = new Bicycle(); Bicycle touringBicycle = new Bicycle(); We have used the new keyword along with the constructor of the class to create an object. Constructors are similar to methods and have the same name as...
In this tutorial, you will learn about the nested class in Java and its types with the help of examples. You can define a class within another class. Such class is known as nested class.
Examples Example 1: Basic Class Definition classAnimal{String name;int age;voiddisplayInfo(){System.out.println("Name: "+name);System.out.println("Age: "+age);}}publicclassMain{publicstaticvoidmain(String[]args){Animal dog=newAnimal();dog.name="Buddy";dog.age=5;dog.displayInfo();}} ...
Examples: <blockquote> text/java Копировать String.class.getName() returns "java.lang.String" byte.class.getName() returns "byte" (new Object[3]).getClass().getName() returns "[Ljava.lang.Object;" (new int[3][4][5][6][7][8][9]).getClass().getName() returns...
package com.examples.test; public class GuoClass<T> { private int money; public int make() { return money + 1000000000; } } 在一般信息里,我们看到有一项“本类索引”(this_class),cp_info表示本类索引的数据类型是常量池类型(constant_pool_info),编号#4表示本类索引指向的是常量池的4号位置,它存...