Consider the banking example. We know that there is a ledgerBalance(static) and it will be manipulated by every account holder when he/she does the transaction.class Account{
private double myBalance;
public static double ledgerBalance;
public void withdraw(double amount){
if(myBalance > 0){
ledgerBalance = ledgerBalance-amount;
myBalance = myBalance - amount;
}
}
public void deposit(){
ledgerBalance = ledgerBalance+amount;
myBalance = myBalance +amount;
}
}