A student is trying to convert the string present in x to a numerical value, so that he can find the square root of the converted value. However the code has an error. Name the error (syntax / logical / runtime). Correct the code so that it compiles and runs correctly.

String x= "25";
int y=Double.parseDouble(x); 
double r=Math.sqrt(y); 
System.out.println(r);

Consider the following program segment and answer the questions below:

class calculate

{
  int a; double b; 
  calculate()

  {

  a=0; 
  b=0.0;

  }

  calculate(int x, double y)

  {

  a=x;
  b=y;

  }

void sum()

{

  System.out.println(a*b);

}}

Name the type of constructors used in the above program segment?

Define a class with the following specifications:

Class name: Bank

Member variables:
double p — stores the principal amount
double n — stores the time period in years
double r — stores the rate of interest
double a — stores the amount

Member methods:
void accept () — input values for p and n using Scanner class methods only.
void calculate () — calculate the amount based on the following conditions:

Time in (Years)	Rate %
Upto 1⁄2	9
> 1⁄2 to 1 year	10
> 1 to 3 years	11
> 3 years	12

$a = p\Big(1+\dfrac{r}{100}\Big)^n$

void display () — display the details in the given format.

Principal    Time    Rate    Amount

XXX            XXX     XXX     XXX

Write the main method to create an object and call the above methods.

Define a class to search for a value input by the user from the list of values given below. If it is found display the message "Search successful", otherwise display the message "Search element not found" using Binary search technique.

5.6, 11.5, 20.8, 35.4, 43.1, 52.4, 66.6, 78.9, 80.0, 95.5.