How many times will the following loop execute? Write the output of the code:

int x=10; 
while (true){
System.out.println(x++ * 2);
if(x%3==0)
break;
} 

Write the output of the following String methods:

String x= "Galaxy", y= "Games";

(a) System.out.println(x.charAt(0)==y.charAt(0));

(b) System.out.println(x.compareTo(y));

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?