Java Programming - Operators and Assignments - Discussion
Discussion Forum : Operators and Assignments - Finding the output (Q.No. 1)
1.
What will be the output of the program?
class PassA
{
public static void main(String [] args)
{
PassA p = new PassA();
p.start();
}
void start()
{
long [] a1 = {3,4,5};
long [] a2 = fix(a1);
System.out.print(a1[0] + a1[1] + a1[2] + " ");
System.out.println(a2[0] + a2[1] + a2[2]);
}
long [] fix(long [] a3)
{
a3[1] = 7;
return a3;
}
}
Answer: Option
Explanation:
Output: 15 15
The reference variables a1 and a3 refer to the same long array object. When the [1] element is updated in the fix() method, it is updating the array referred to by a1. The reference variable a2 refers to the same array object.
So Output: 3+7+5+" "3+7+5
Output: 15 15 Because Numeric values will be added
Discussion:
43 comments Page 3 of 5.
Riya said:
9 years ago
Please help me out that when a (+) operator is used for concatenating and for addition purpose.
Ram said:
1 decade ago
The method fix()is fixed the is a3[1]=7, so that value is assing by the position of a[1]=7.
Sarah Glory Olivia said:
9 years ago
Here, fix(a1) is for a2, so why a1[1] in a[1] change to 7 while a1 doesn't use fix method?
Nadeem said:
1 decade ago
How is 15 printed even if we are not performing addition of a1 and a2 elements anywhere?
Ramesh said:
1 decade ago
It's all because of the cloning of the same array object reference this is the concept.
Prudhvi Kumar said:
1 decade ago
Please any one explain me output for this program and fix method in-detail.
Veerraju said:
1 decade ago
Please tell me fix() method from which class and which package.
Suresh said:
1 decade ago
@Abdul.
Numeric values will be added in the print statements.
Numeric values will be added in the print statements.
Anandi said:
1 decade ago
The answer is 375 375. Then how it is 15 15 please explain me?
Lavanya said:
9 years ago
Out put: 3 4 5 3 7 5.
Because + are concatenate operator.
Because + are concatenate operator.
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