ICSE Computer Application - Class X - 2023 PYQ - Quiz

Identify the type of operator `&&`:

Aternary
Bunary
Clogical
Drelational

The Scanner class method used to accept words with space:

Anext()
BnextLine()
CNext()
DnextString()

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

Acontinue
Bbreak
Creturn
DSystem.exit(0)

The number of values that a method can return is:

Predict the output of the following code snippet:


String P = "20", Q ="22"; 
int a = Integer.parseInt(P);
int b = Integer.valueOf(Q);
System.out.println(a + " " + b);

A20
B20 22
C2220
D22

The output of the function "COMPOSITION".substring(3, 6):

APOSI
BPOS
CMPO
DMPOS

int x = (int)32.8; is an example of ............... typecasting.

Aimplicit
Bautomatic
Cexplicit
Dcoercion

A method which does not modify the value of variables is termed as:

AImpure method
BPure method
CPrimitive method
DUser defined method

The number of bits occupied by the value ‘a’ are:

A1 bit
B2 bits
C4 bits
D16 bits

Method which is a part of a class rather than an instance of the class is termed as:

AStatic method
BNon static method
CWrapper class
DString method

Results:
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ICSE Computer Application - Class X - 2023 PYQ - Quiz

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Percentage: %

Q:
Identify the type of operator `&&`:

A. ternary
B. unary
C. logical
D. relational

Correct Option: C
Remarks:

Explanation:

logical

Reason — Logical operators operate only on boolean operands and are used to construct complex decision-making expressions. Logical AND && operator evaluates to true only if both of its operands are true.

Q: The Scanner class method used to accept words with space:

A. next()
B. nextLine()
C. Next()
D. nextString()

Correct Option: B
Remarks:

Explanation:

nextLine()

Reason — nextLine() reads the input till the end of line so it can read a full sentence including spaces.

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

A. continue
B. break
C. return
D. System.exit(0)

Correct Option: B
Remarks:

Explanation:

break

Reason — The absence of break statement leads to fall through situation in switch case statement.

Q: The number of values that a method can return is:

A. 1
B. 2
C. 3
D. 4

Correct Option: A
Remarks:

Explanation:

Reason — A method can return only one value.

Q: Predict the output of the following code snippet:


String P = "20", Q ="22"; 
int a = Integer.parseInt(P);
int b = Integer.valueOf(Q);
System.out.println(a + " " + b);

A. 20
B. 20 22
C. 2220
D. 22

Correct Option: B
Remarks:

Explanation:

20 22

Reason — The values of strings P and Q are converted into integers using the Integer.parseInt() method and stored in int variables a and b, respectively.
When the statement System.out.println(a + " " + b) is executed, first the operation a + " " is performed. Here, int variable a is converted to a string and a space is concatenated to it resulting in "20 ".
After this, the operation "20 " + b is performed resulting in 20 22 which is printed as the output.

Q: The output of the function "COMPOSITION".substring(3, 6):

A. POSI
B. POS
C. MPO
D. MPOS

Correct Option: B
Remarks:

Explanation:

POS

Reason — The substring() method returns a substring beginning from the startindex and extending to the character at endIndex - 1. Since a string index begins at 0, the character at index 3 is 'P' and the character at index 5 (6-1 = 5) is 'S'. Thus, "POS" is extracted.

Q: int x = (int)32.8; is an example of ............... typecasting.

A. implicit
B. automatic
C. explicit
D. coercion

Correct Option: C
Remarks:

Explanation:

explicit

Reason — In explicit type conversion, the data gets converted to a type as specified by the programmer. Here, the float value 32.8 is being converted to int type by the programmer, explicitly.

Q: A method which does not modify the value of variables is termed as:

A. Impure method
B. Pure method
C. Primitive method
D. User defined method

Correct Option: B
Remarks:

Explanation:

Pure method

Reason — A method which does not modify the value of variables is termed as a pure method.

Q: The number of bits occupied by the value ‘a’ are:

A. 1 bit
B. 2 bits
C. 4 bits
D. 16 bits

Correct Option: D
Remarks:

Explanation:

16 bits

Reason — A char data type occupies 2 bytes in the memory.

1 byte = 8 bits
2 bytes = 8 * 2 = 16 bits

Q: Method which is a part of a class rather than an instance of the class is termed as:

A. Static method
B. Non static method
C. Wrapper class
D. String method

Correct Option: A
Remarks:

Explanation:

Static method

Reason — Method which is a part of a class rather than an instance of the class is termed as Static method.

ICSE Computer Application - Class X - 2023 PYQ - Quiz

Identify the type of operator &&:

The Scanner class method used to accept words with space:

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

The number of values that a method can return is:

Predict the output of the following code snippet: String P = "20", Q ="22"; int a = Integer.parseInt(P); int b = Integer.valueOf(Q); System.out.println(a + " " + b);

The output of the function "COMPOSITION".substring(3, 6):

int x = (int)32.8; is an example of ............... typecasting.

A method which does not modify the value of variables is termed as:

The number of bits occupied by the value ‘a’ are:

Method which is a part of a class rather than an instance of the class is termed as:

Identify the type of operator `&&`:

Predict the output of the following code snippet: