Class 6 2ciclo
2
Class 6 Exposure: Group #7 Return of an object The keyword new Constructor call Return of an object The keyword new The new keyword is a Java operator that creates the object . The new operator precedes a call to a constructor , which initializes the new object . Constructor call A constructor can only be called by other constructors or class methods (static). public class BankAccount{ // member attributes or variables private double balance; public static int TotalAccounts =0; // methods public BankAccount ( ) { this(0.0); // constructor call has a parameter } public BankAccount( double ingreso ) { balance = write; incAccount (); } public double balance () { return balance; } public static void incCuentas () { TotalAccounts ++; } public void transfer (BankAccount origen ) { balance += origin. balance; origin. balance =0;
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Transcript of Class 6 2ciclo
Class 6 Exposure: Group #7
Return of an object
The keyword new Constructor call
Return of an object The keyword new
The new keyword is a Java operator that creates the object . The new operator precedes a call to a constructor , which initializes the new
object .
Constructor call
A constructor can only be called by other constructors or class methods (static).
public class BankAccount{
// member attributes or variables
private double balance;
public static int TotalAccounts =0;
// methods
public BankAccount ( ) {
this(0.0); // constructor call has a parameter
}
public BankAccount( double ingreso ) {
balance = write;
incAccount ();
}
public double balance () {
return balance;
}
public static void incCuentas () {
TotalAccounts ++;
}
public void transfer (BankAccount origen ) {
balance += origin. balance;
origin. balance =0;
public class suma2 { public int a; public int b; public int c; public suma2(int a, int b) { this.a=a; this.b=b; } public void setCalculo() { c=(a+b)*-1; } public void getMostrar() { System.out.println("la suma es:"+c); } /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub suma2 e=new suma2(4,5); e.setCalculo(); e.getMostrar(); } }
