Question

Question 1.
(a) Define encapsulation. [2]
(b) Explain the purpose of using a ‘new’ keyword in a Java program. [2]
(c) What are literals? [2]
(d) Mention the types of access specifiers. [2]
(e) What is constructor overloading? [2]
Question 2.
(a) Differentiate between boxing and unboxing. [2]
(b) Rewrite the following condition without using logical operators:
if ( a>b || a>c )
System.out.println(a);
[2]
ICSE Specimen Paper 2020 onwards 2
(c) Rewrite the following loop using for loop:
while (true)
System.out.print("*");
[2]
(d) Write the prototype of a function search which takes two arguments a string
and a character and returns an integer value.
[2]
(e) Differentiate between = and == operators. [2]
Question 3.
(a) State the number of bytes and bits occupied by a character array of 10 elements. [2]
(b) Differentiate between Binary Search and Linear Search techniques. [2]
(c) What is the output of the following:
String a="Java is programming language \n developed by \t\'James Gosling\'";
System. out. println(a);
[2]
(d) Differentiate between break and System. exit(0). [2]
(e)
Write a statement in Java for √
(+)
3
|−|

[2]
(f) What is the value of m after evaluating the following expression:
m - = 9%++n + ++n/2; when int m=10,n=6
[2]
(g) Predict output of the following:
(i) Math.pow(25,0.5)+Math.ceil(4.2)
(ii) Math.round ( 14.7 ) + Math.floor ( 7.9)
[2]
(h) Give the output of the following java statements:
(i) "TRANSPARENT".toLowerCase();
(ii) "TRANSPARENT".compareTo("TRANSITION")
[2]
(i) Write a java statement for each to perform the following task:
(i) Find and display the position of the last space in a string str.
(ii) Extract the second character of the string str.
[2]
ICSE Specimen Paper 2020 onwards 3 Turn Over
(j) State the type of errors if any in the following statements:
(i) switch ( n > 2 )
(ii) System.out.println(100/0);

Answer 1

Answer:

Kingdom

Eukaryotic, prokaryotic. Uni or multi cellular

Mode of nutrition

Reproduction

Shapes

Examples

Flagella in bacteria, mycelium and hyphe in fungi

Diseases

3) bacteria and fungipls follow

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