How to access static variable from different package?

Question

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package com.gbr;

public class Hai {
public static int A=88;
}

package com.gbr;

public class Hello {
public static int A=99;
}

package org.sd;

import static com.gbr.Hello.*;
import static com.gbr.Hai.*;

class Test13 {
public static void main(String args[]){
	System.out.println(Hello.A);
        System.out.println(Hai.A);
}
}

Output: reference to A is ambiguous

How do I access the static variable A of both classes. What are other ways?

What I have tried:

I have executed the above codes.

Posted 22-Aug-17 4:02am

Member 11735960

Updated 22-Aug-17 16:30pm

v4

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Comments

Richard MacCutchan 22-Aug-17 10:41am

I just tried that and did not get any errors, and the final code prints the correct value.

Member 11735960 22-Aug-17 11:20am

I am sorry. I have corrected the code.

Richard MacCutchan 22-Aug-17 11:30am

Now you have different package names to the ones you are importing.

Richard MacCutchan 22-Aug-17 12:26pm

Your problem really stems from the fact that you have two definitions of A. So unless you use the fully qualified name the compiler cannot be sure which one you are referring to.

2 solutions

Solution 1

Try:

Java

package org.sd;
 
import static com.gbr.Hello.*;
import static com.gbr.Hai.*;
 
class Test13 {
public static void main(String args[]){
	System.out.println(com.gbr.Hello.A);
        System.out.println(com.gbr.Hai.A);
}
}

Posted 22-Aug-17 6:13am

Richard MacCutchan

Comments

Member 11735960 22-Aug-17 12:35pm

Thanks. That works. Is this the only solution?

Mohibur Rashid 22-Aug-17 22:27pm

I would not suggest that

Richard MacCutchan 23-Aug-17 3:08am

Neither would I, but these days people seem to do what they want rather than what they should.

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Mohibur Rashid · Accepted Answer · 2017-08-22T16:30:00

Please read this document[^]

This one provides various examples on how you can declare

Improving Richard MacCutchan 's answer

package org.sd;

class Test13 {
public static void main(String args[]){
	System.out.println(com.gbr.Hello.A);
        System.out.println(com.gbr.Hai.A);
}
}

or

package org.sd;

import com.gbr.Hello;
import com.gbr.Hai;
class Test13 {
public static void main(String args[]){
	System.out.println(Hello.A);
        System.out.println(Hai.A);
}
}

or

package org.sd;

import static com.gbr.Hello.*;
import com.gbr.Hai;
class Test13 {
public static void main(String args[]){
	System.out.println(A);
        System.out.println(Hai.A);
}
}

or

package org.sd;

import static com.gbr.Hello.A;
import com.gbr.Hai;
class Test13 {
public static void main(String args[]){
	System.out.println(A);
        System.out.println(Hai.A);
}
}

Also read this to understand ambiguity[^]