Java Programming/API/java.lang.Object
java.lang.Object
Object sınıfı metodları ve açıklamaları
equals() Metodu
public boolean isCustomerExist( Customer newCustomer ) { boolean isRet = false; Iterator iter = _collAllCustomer.iterator(); while ( iter.hasNext() ) { if ( newCustomer.equals( (Customer) iter.next() ) { // -- Customer was found --- isRet = true; } } return isRet; }
hashCode() Metodu
getClass() Metodu
, import com.yourCompany.Customer; ... Object obj = new Customer(); ... System.out.println( "Name:" + obj.getClass().getName() );
toString() Metodu
String str = "This customer is " + objCust;
public class Customer { private String _name; private String _address; private String _age; ... public String toString() { StringBuffer buf = new StringBuffer(); buf.append( "Name = " ); buf.append( _name ); buf.append( "\n" ); buf.append( "Address= " ); buf.append( _address ); buf.append( "\n" ); buf.append( "Age = " ); buf.append( _age ); buf.append( "\n" ); ... return buf.toString(); } ... }
System.out.println( objCustomer );