Cash balance Groovy coding questions & answers

Posted on July 23, 2015 by

Q1. Can the following code be further improved?

class CashBalance {
   def balance = 0.0;
   
   def initBalance(def initBalance) {this.balance = initBalance }
   def addCredits(def credits) {this.balance = balance + credits }
   def subtractDebits(def credits) {this.balance = balance - credits }
}
def cashBal = new CashBalance();
cashBal.initBalance(50000.00);
cashBal.addCredits(10000.00);
cashBal.subtractDebits(20000.00);
println "Current balance = ${cashBal.balance}" //40000.00 is the ouput

class CashBalance {

def balance = 0.0;

def initBalance(def initBalance) {this.balance = initBalance }

def addCredits(def credits) {this.balance = balance + credits }

def subtractDebits(def credits) {this.balance = balance - credits }

}

def cashBal = new CashBalance();

cashBal.initBalance(50000.00);

cashBal.addCredits(10000.00);

cashBal.subtractDebits(20000.00);

println "Current balance = ${cashBal.balance}" //40000.00 is the ouput

A1. Yes, it can be made a bit more elegant with the builder design pattern. For example, we can return the “CashBalance” object from each mathod by adding the keyword “this”…

Cash balance Groovy coding questions & answers

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