Java Programming - Java.lang Class - Discussion
Discussion Forum : Java.lang Class - Finding the output (Q.No. 12)
12.
What will be the output of the program?
try
{
Float f1 = new Float("3.0");
int x = f1.intValue();
byte b = f1.byteValue();
double d = f1.doubleValue();
System.out.println(x + b + d);
}
catch (NumberFormatException e) /* Line 9 */
{
System.out.println("bad number"); /* Line 11 */
}
Answer: Option
Explanation:
The xxxValue() methods convert any numeric wrapper object's value to any primitive type. When narrowing is necessary, significant bits are dropped and the results are difficult to calculate.
Discussion:
7 comments Page 1 of 1.
Subha said:
7 years ago
I think that,
x = int means it covert tat 3.0 as 3.
b = byte so that it takes byte as 0.
z = double means it takes the value as double which is 6.0
3 + 0 + 6.0 = 9.0.
x = int means it covert tat 3.0 as 3.
b = byte so that it takes byte as 0.
z = double means it takes the value as double which is 6.0
3 + 0 + 6.0 = 9.0.
Ejaz said:
10 years ago
Automatic conversion will make all the variables in print statement to double and then add it to become 9.0.
(1)
Bj venu said:
10 years ago
How we can add different data types?
Tanaji sen said:
1 decade ago
Someone please elaborate. I don't know the concept of wrapper class.
Vikas sahay said:
1 decade ago
But how can we add two different data type?
Suri said:
1 decade ago
Auto unboxing so they are automatticalyy convert into primitive.
Div said:
1 decade ago
How it s 9? in System.out.println + means concatenation and not (+ ie add).
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers