example)
package learn.java.sample;
import java.util.*;
public class SampleClass {
String str = "Hello"; // String variable
int x = 100; // primitive
/* main method */
public static void main(String[] args) {
SampleClass sc = new SampleClass();
sc.showMsg();
System.out.println(getValue());
}
/* method */
void showMsg() {
System.out.println(str);
}
/* method */
int getValue() {
return x;
}
}
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How to make a class (Basic)
- Declare the name of the package
- Import necessary packages
- Define the name of the class
- Declare instance variables (and initialize them if you want)]
- Write main method
What is main method?
main mehtod is the only method where the program thead starts.
