(English Medium) ICSE Class 10 - CISCE Important Questions

What is a parameterized constructor?

Name the two types of constructors.

Write two characteristics of a constructor.

Write the output of the following program code:

char ch ;
int x=97;
do
{
ch=(char) x;
System.out.print(ch + “ ” );
if(x%10 == 0)
break;
++x;
}while(x<=100);

when is a constructor invoked?

The absence of which statement leads to fall through situation in switch case statement?

Consider the following program segment and select the output of the same when n = 10:

switch(n)
{Case 10: System.out.println(0*2);
case 4: System.out.println(n*4); break;
default : Syslem.out.println(n);
}

Rewrite the following code using the if-else statement:

int m = 400;
double cl). = (m>300) ? (m/10.0) * 2; (m/20.0) - 2;

Give the output of the following program segment:

int n = 4279; int d;
while(n>0)
(d=n%10;
System.out.println(d);
n=n/100;
}

Name the following:

The method which has same name as that of the class name.

Which of the following data type cannot be used with switch case construct?

If the name of the class is "Yellow", what can be the possible name for its constructors?

Which of the following is not true with regards to a switch statement?

Rewrite the following code using single if statement.

if(code=='g')
System.out.println("GREEN");
else if(code=='G')
System.out.println("GREEN");

A student executes the following program segment and gets an error. Identify the statement which has an error, correct the same to get the output as WIN.

boolean x=true;
switch(x)
{     case 1:System.out.println("WIN");break;
      case 2;System.out.println("LOOSE");
}

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.

Identify and name the following tokens:

(i) public
(ii) ‘a’
(iii) ==
(iv) {}

Using the switch-case statement, write a menu driven program to do the following :

(a) To generate and print Letters from A to Z and their Unicode Letters Unicode

(b) Display the following pattern using iteration (looping) statement: 1

Define Encapsulation.

Name any two types of access specifiers.