Private members of the class can be accessed in the member functions of this class. Private members of a class are hidden in the derived class and can only be accessed from member functions of the base class.
Private members in Java are modified using private. (Recommended learning: Java Video Tutorial)
Private members can only be called in this class and cannot be seen outside this class. If you want to obtain private member variables in other classes, you can write a public get method in this class, and other classes can obtain private member variables by calling this get method.
class PrivateTest{
private String str = "私有成员变量";
//如果加上这个方法
public String getStr(){
return str;
}
public static void main(String[] args){
System.out.println(str);//这里可以调用到str变量
}
}
class OtherClass{
public static void main(String[] args){
PrivateTest pt = new PrivateTest();
//String tryToGet = pt.str;//这句编译会报错,str不可见
String getStr = pt.getStr();//这样 就可以获取到str的
}
}
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