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Last active December 31, 2015 11:49
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Class Instantiation Subtlety
class Base{
public String baseDeclared = null;
public Base(){
setDefaults();
}
public void setDefaults(){
baseDeclared = "DEFAULT BASED DECLARED VALUE";
}
}
class Child extends Base {
public String childDeclared = null;
public Child(){
super();
}
@Override
public void setDefaults(){
super.setDefaults();
childDeclared = "DEFAULT CHILD DECLARED VALUE";
baseDeclared = "BASED DECLARED VALUE CHANGED IN CHILD";
}
}
Child c = new Child();
//This assertion is true
assertEquals("baseDeclared not updated by child","BASED DECLARED VALUE CHANGED IN CHILD",c.baseDeclared);
//This assertion is false
assertEquals("childDeclared not set to default value","DEFAULT CHILD DECLARED VALUE",c.childDeclared);
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