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anil kumar devunoori We can invoke NON VOID method as VOID method. Interesting!
public class ApexMethodBehaviourTest {
public static Integer staticNum = 0;
public static Integer getNumber1(Integer i1){
staticNum = i1;
return i1;
}
public static Integer getNumber2(Integer i2){
getNumber1(i2);
return staticNum;
}
public Integer getNumber3(Integer i3){
return i3;
}
public Integer getNumber4(Integer i4){
getNumber3(i4);
return i4;
}
}
Today when I was reviewing the code, I observed that we can invoke a non void method as void method. It's interesting!
getNumber1(i2) and getNumber3(i4) methods are non void but invoked as void method.
public static Integer staticNum = 0;
public static Integer getNumber1(Integer i1){
staticNum = i1;
return i1;
}
public static Integer getNumber2(Integer i2){
getNumber1(i2);
return staticNum;
}
public Integer getNumber3(Integer i3){
return i3;
}
public Integer getNumber4(Integer i4){
getNumber3(i4);
return i4;
}
}
Today when I was reviewing the code, I observed that we can invoke a non void method as void method. It's interesting!
getNumber1(i2) and getNumber3(i4) methods are non void but invoked as void method.
Hope this solve your quesations ..
All Answers
You can invoke Both the ways .. For Compiler its just matter for the Last statement as the return in case if your outer method is having the return type
Return method can invoke from nonreturn method and vice versa
Raj, Thank you very much for reply and the interest you showed.
I am still having queries.
Generally in C and Java, if a method returns value, it should be invoked as below:
In case of method getNumber3:
public Integer getNumber3(Integer i3){
return i3;
}
It is generally invoked as below:
Integer i5=getNumber3(1);
But in Apex, I can invoke like void method as below:
getNumber3(1); //this doesnt work in C or Java as per my knowledge but its fine in Apex
How the compiler handles it? and where the value returned in statement getNumber3(1); goes?
In below statement there is no assignment to i5:
getNumber3(1); //this statement doesnt work in C or Java as per my knowledge but its fine in Apex
same question:
where the value returned in statement getNumber3(1); goes?
public class ApexMethodBehaviourTest {
public static Integer staticNum = 0;
public static Integer getNumber1(Integer i1){
staticNum = i1;
return i1;
}
public static Integer getNumber2(Integer i2){
getNumber1(i2);
return staticNum;
}
public Integer getNumber3(Integer i3){
return i3;
}
public Integer getNumber4(Integer i4){
getNumber3(i4);
return i4;
}
}
The highlighted statement(method invoke) generally returns a value. where that value returned by statement getNumber3(i4); goes?
Hope this solve your quesations ..
But still have questions
Why salesforce allowed to call NON VOID method like VOID method?
https://developer.salesforce.com/forums/ForumsMain?id=9060G0000005h7pQAA
If you get any information, please post there.
I dont have account with Stack Exchange. As suggested by you, I will post it on Stackewxchange too once I create one account for me. Have a good day!