static Method and variable in java, static variable increment using methods
Java Programming Language Class, Object and Methods in java (Article) Class, Object and Methods in java (Program)
3047Program:
public class StaticDemo{ public static void main(String args[]){ Student s1 = new Student(); s1.showData(); Student s2 = new Student(); s2.showData(); //Student.b++; //s1.showData(); } } class Student { int a; //initialized to zero static int b; //initialized to zero only when class is loaded not for each object created. Student(){ //Constructor incrementing static variable b b++; } public void showData(){ System.out.println("Value of a = "+a); System.out.println("Value of b = "+b); } //public static void increment(){ //a++; //} }
Output:
Value of a = 0 Value of b = 1 Value of a = 0 Value of b = 2 Press any key to continue . . .
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