why I don't access imported package's object but access the instant class object? [duplicate]
0
This question already has an answer here:
Understanding java's protected modifier
6 answers
Why subclass in another package cannot access a protected method?
6 answers
Protected member access from different packages in java - a curiosity
9 answers
package one;
public class B {
protected int n;
}
package two;
import one.B;
public class D extends B {
public void demo(){
n=42;
}
public void demo2(){
D obje=new D();
obje.n=45;
}
public void demo3(){
B obje=new B();
obje.n=49;//This part ERROR!!
}
}
I don't understand why this code has an error in demo3 ,but demo2 is running.
java oop inheritance
edited Jan 19 at 16:18
Todd
18.5k74454
asked Jan 19 at 16:17
LeoLeo
1
marked as duplicate by Radiodef java
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Jan 19 at 16:26
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
0
This question already has an answer here:
Understanding java's protected modifier
6 answers
Why subclass in another package cannot access a protected method?
6 answers
Protected member access from different packages in java - a curiosity
9 answers
package one;
public class B {
protected int n;
}
package two;
import one.B;
public class D extends B {
public void demo(){
n=42;
}
public void demo2(){
D obje=new D();
obje.n=45;
}
public void demo3(){
B obje=new B();
obje.n=49;//This part ERROR!!
}
}
I don't understand why this code has an error in demo3 ,but demo2 is running.
java oop inheritance
edited Jan 19 at 16:18
Todd
18.5k74454
asked Jan 19 at 16:17
LeoLeo
1
marked as duplicate by Radiodef java
Users with the java badge can single-handedly close java questions as duplicates and reopen them as needed.
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Jan 19 at 16:26
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
What will be error throw. Show the error.
– Ng Sharma
Jan 19 at 16:33
Otherwise also, protected variable you can access only same package or outside package only child class access.
– Ng Sharma
Jan 19 at 16:37
stackoverflow.com/questions/215497/…
– Ng Sharma
Jan 19 at 16:40
It is underlined by IntelliJ and "n has protected access in one.B".So can't we access B's n despite import 'one' package?
– Leo
Jan 19 at 16:41
add a comment |
0
0
0
This question already has an answer here:
Understanding java's protected modifier
6 answers
Why subclass in another package cannot access a protected method?
6 answers
Protected member access from different packages in java - a curiosity
9 answers
package one;
public class B {
protected int n;
}
package two;
import one.B;
public class D extends B {
public void demo(){
n=42;
}
public void demo2(){
D obje=new D();
obje.n=45;
}
public void demo3(){
B obje=new B();
obje.n=49;//This part ERROR!!
}
}
I don't understand why this code has an error in demo3 ,but demo2 is running.
java oop inheritance
edited Jan 19 at 16:18
Todd
18.5k74454
asked Jan 19 at 16:17
LeoLeo
1
This question already has an answer here:
Understanding java's protected modifier
6 answers
Why subclass in another package cannot access a protected method?
6 answers
Protected member access from different packages in java - a curiosity
9 answers
package one;
public class B {
protected int n;
}
package two;
import one.B;
public class D extends B {
public void demo(){
n=42;
}
public void demo2(){
D obje=new D();
obje.n=45;
}
public void demo3(){
B obje=new B();
obje.n=49;//This part ERROR!!
}
}
I don't understand why this code has an error in demo3 ,but demo2 is running.
This question already has an answer here:
Understanding java's protected modifier
6 answers
Why subclass in another package cannot access a protected method?
6 answers
Protected member access from different packages in java - a curiosity
9 answers
java oop inheritance
java oop inheritance
edited Jan 19 at 16:18
Todd
18.5k74454
asked Jan 19 at 16:17
LeoLeo
1
edited Jan 19 at 16:18
Todd
18.5k74454
asked Jan 19 at 16:17
LeoLeo
1
edited Jan 19 at 16:18
Todd
18.5k74454
edited Jan 19 at 16:18
Todd
18.5k74454
edited Jan 19 at 16:18
Todd
18.5k74454
18.5k74454
asked Jan 19 at 16:17
LeoLeo
1
asked Jan 19 at 16:17
LeoLeo
1
asked Jan 19 at 16:17
LeoLeo
1
1
marked as duplicate by Radiodef java
Users with the java badge can single-handedly close java questions as duplicates and reopen them as needed.
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Jan 19 at 16:26
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by Radiodef java
Users with the java badge can single-handedly close java questions as duplicates and reopen them as needed.
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Jan 19 at 16:26
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
What will be error throw. Show the error.
– Ng Sharma
Jan 19 at 16:33
Otherwise also, protected variable you can access only same package or outside package only child class access.
– Ng Sharma
Jan 19 at 16:37
stackoverflow.com/questions/215497/…
– Ng Sharma
Jan 19 at 16:40
It is underlined by IntelliJ and "n has protected access in one.B".So can't we access B's n despite import 'one' package?
– Leo
Jan 19 at 16:41
add a comment |
What will be error throw. Show the error.
– Ng Sharma
Jan 19 at 16:33
Otherwise also, protected variable you can access only same package or outside package only child class access.
– Ng Sharma
Jan 19 at 16:37
stackoverflow.com/questions/215497/…
– Ng Sharma
Jan 19 at 16:40
It is underlined by IntelliJ and "n has protected access in one.B".So can't we access B's n despite import 'one' package?
– Leo
Jan 19 at 16:41
What will be error throw. Show the error.
– Ng Sharma
Jan 19 at 16:33
What will be error throw. Show the error.
– Ng Sharma
Jan 19 at 16:33
Otherwise also, protected variable you can access only same package or outside package only child class access.
– Ng Sharma
Jan 19 at 16:37
Otherwise also, protected variable you can access only same package or outside package only child class access.
– Ng Sharma
Jan 19 at 16:37
stackoverflow.com/questions/215497/…
– Ng Sharma
Jan 19 at 16:40
stackoverflow.com/questions/215497/…
– Ng Sharma
Jan 19 at 16:40
It is underlined by IntelliJ and "n has protected access in one.B".So can't we access B's n despite import 'one' package?
– Leo
Jan 19 at 16:41
It is underlined by IntelliJ and "n has protected access in one.B".So can't we access B's n despite import 'one' package?
– Leo
Jan 19 at 16:41
add a comment |
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What will be error throw. Show the error.
– Ng Sharma
Jan 19 at 16:33
Otherwise also, protected variable you can access only same package or outside package only child class access.
– Ng Sharma
Jan 19 at 16:37
stackoverflow.com/questions/215497/…
– Ng Sharma
Jan 19 at 16:40
It is underlined by IntelliJ and "n has protected access in one.B".So can't we access B's n despite import 'one' package?
– Leo
Jan 19 at 16:41