What is the method called for invoking a Java structure?
In Java, there is no separate concept of structures. Instead, structures are represented through classes. Therefore, to use the functionality of structures, you can create a class instead.
In Java, ways to call a struct involves:
- Create a class to represent a data structure, with member variables and methods.
- Instantiate objects of a class, and access instance variables and methods through the objects.
- Constructors can be used to initialize the state of an object.
- It is possible to define methods in a class to manipulate the member variables of a data structure.
The sample code is as follows:
public class MyStruct {
private int data1;
private String data2;
public MyStruct(int data1, String data2) {
this.data1 = data1;
this.data2 = data2;
}
public int getData1() {
return this.data1;
}
public String getData2() {
return this.data2;
}
public void setData1(int data1) {
this.data1 = data1;
}
public void setData2(String data2) {
this.data2 = data2;
}
public void printData() {
System.out.println("Data1: " + this.data1);
System.out.println("Data2: " + this.data2);
}
}
public class Main {
public static void main(String[] args) {
MyStruct myStruct = new MyStruct(10, "Hello");
System.out.println("Data1: " + myStruct.getData1());
System.out.println("Data2: " + myStruct.getData2());
myStruct.setData1(20);
myStruct.setData2("World");
myStruct.printData();
}
}
In the example above, a MyStruct class is defined to represent a structure, which includes two member variables, data1 and data2, and provides corresponding methods to access and manipulate these member variables. In the Main class, a MyStruct object is instantiated and the appropriate methods are called to operate on and output the data.