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Mock #2 and Question #28

 
Greenhorn
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Please could you some body give the answer.?
Question 28)
What will happen when you attempt to compile and run the following code
public class As{
int i = 10;
int j;
char z= 1;
boolean b;
public static void main(String argv[]){
As a = new As();
a.amethod();
}
public void amethod(){
System.out.println(j);
System.out.println(b);
}
}
1) Compilation succeeds and at run time an output of 0 and false
2) Compilation succeeds and at run time an output of 0 and true
3) Compile time error b is not initialised
4) Compile time error z must be assigned a char value

Given Ans is 1:
But I belive that answer is 4;
Thanks in advance
 
Greenhorn
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For member variables, they are initialized to either 0 ( for int, long, short, byte, double, float) or false (for boolean).
This doesn't happen for local variables and would not compile
for them.
 
Greenhorn
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Hi Netla,
A char variable can be assigned to any value in the range of 0 to 2^16 - 1.
Hemant.
 
Greenhorn
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Originally posted by Netla Reddy:
Please could you some body give the answer.?
Question 28)
What will happen when you attempt to compile and run the following code
public class As{
int i = 10;
int j;
char z= 1;
boolean b;
public static void main(String argv[]){
As a = new As();
a.amethod();
}
public void amethod(){
System.out.println(j);
System.out.println(b);
}
}
1) Compilation succeeds and at run time an output of 0 and false
2) Compilation succeeds and at run time an output of 0 and true
3) Compile time error b is not initialised
4) Compile time error z must be assigned a char value

Given Ans is 1:
But I belive that answer is 4;
Thanks in advance



hi netla,
i got u question,
As u r declaring the variable in the class no need to intialise them.
if at all u want to write a variable in the main method u should and must initialise that variable.
coming to char it will assign value 2^16.
i think u can get my answer
thanks
VenkateshwarReddy
 
venkatg
Greenhorn
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Originally posted by Netla Reddy:
Please could you some body give the answer.?
Question 28)
What will happen when you attempt to compile and run the following code
public class As{
int i = 10;
int j;
char z= 1;
boolean b;
public static void main(String argv[]){
As a = new As();
a.amethod();
}
public void amethod(){
System.out.println(j);
System.out.println(b);
}
}
1) Compilation succeeds and at run time an output of 0 and false
2) Compilation succeeds and at run time an output of 0 and true
3) Compile time error b is not initialised
4) Compile time error z must be assigned a char value

Given Ans is 1:
But I belive that answer is 4;
Thanks in advance


hi netla,
boolean value will have false by default.
sothe result is 1
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