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Wednesday 1 November 2017
Class 12 - Informatics Practices - Java Concepts (Worksheet- 2) (#cbseNotes)
JAVA Concepts (Worksheet-2)
Q1: See the following Java code. Identify
(i) Superclass
(ii) Subclass
(iii) Can student class modify the value of birthyear? Why or Why not?
(iv) Can student class modyfy the value of age? Why or Why not?
class human
{
private int birthyear;
String name;
int age;
void method1()
{...}
}
class student extends human
{
int rollno;
...
void method2()
{...}
}
Monday 30 October 2017
CBSE Class 12 - Business Studies - Business Environment - GOI Economic Policy Changes Since 1991 (#cbseNotes)
Business Environment -
GOI Economic Policy Changes Since 1991
Question: Explain the changes initiated by the government of India since 1991?
Answer: Following changes have been observed since 1991:
⒈ New industrial policy
⒉ New trade policy
⒊ Fiscal reforms
⒋ Monetary reforms
⒌ Capital market reforms
1. New industrial policy
A. Government has begun disinvesting in public sector undertaking
B. There are new schemes to attract foreign direct investment (FDI).
C. There is promoting clearance of foreign investment proposals.
D. Tax concession is given to units in special economic zones (sezs).
E. There is broadband facility in telecom sector
E. Abolition of industrial registrations scheme.
Saturday 28 October 2017
CBSE Class 8 Science - Chemical Effects of Electric Current (Q and A) (#cbseNotes)
Chemical Effects of Electric Current (Q and A)
Q1: Which of the following liquids conduct electricity & which do not conduct electricity?
Lemon juice, Milk, Vinegar, Salt solution, Distilled water, Honey, Seawater, Rainwater.
Answer:
Conducting: Lemon juice, Vinegar, Salt solution, sea water, Rainwater
Non-Conducting: Milk, Distilled water, Honey.
Q2: What is an electric current?
Answer: The rate of the flow of charge is called an electric current.
Q3: Name a device which glows even when a weak electric current passes through it.
Answer: LED (Light Emitting Diode)
Friday 27 October 2017
CBSE Class 10 - Biology - Study Notes about Plant Growth Hormones (Phytohormones) (#cbseNotes)
Plant Hormones (Phytohormones)
Plant hormones or phytohormones are small, simple chemical molecules, which are present in low concentration in plants and regulate growth, differentiation and development.
Two Categories of Phytohormones:
① Plant growth promoters: Examples are auxins, gibberellins and cytokinins.
② Plant growth inhibitors: Examples are abscisic acid, ethylene.
All about Auxins
⒈ Auxins are weakly acidic growth hormones.
⒉ Darwin (1880) was first to find about Auxins in the tip of canary grass.
⒊ These hormones are found in shoot apex, leaf Primordia and developing seeds.
Thursday 26 October 2017
Wednesday 25 October 2017
CBSE Class 12 - Informatics Practices - JAVA Concepts (Worksheet) (#cbseNotes)
JAVA Concepts (Worksheet)
Q1: What will be the value of X1 after execution of the following code?
String X1 ="Graduate", X2 = "Post";
X1 = X2.contcat(X1);
Q2: What is the difference between the use of JTextField and JPasswordField in a form?
Q3: Name the method used to extract specified number of characters from a string?
CBSE CLASS 9 - SOCIAL SCIENCE - WORKING OF INSTITUTIONS ( Q and A) (#cbseNotes)
SOCIAL SCIENCE - WORKING OF INSTITUTIONS
Q & A
Q1: What do you mean by the term institution? Why are they required?
Answer: Several arrangements are made in all modern democracies to perform various tasks. Such arrangements are called institutions. Some of the tasks performed by these institutions are:
1. To ensure security to the citizens and provide facilities for education and health to all.
2. To collect taxes and spend the money thus raised on administration, defence and development programmes.
3. To formulate and implement several welfare schemes.
4. To solve the disputes: if they arise on various decisions or on their implementation.
A democracy works well when the various institutions perform functions assigned to them.
Q2: Which three institutions are responsible to run a democratic government in India? Mention their respective roles.
Answer: The three institutions responsible to run a democratic government in India are:
Monday 23 October 2017
Sunday 22 October 2017
CBSE Class 12 - Informatics Practices - Java Object Oriented Programming-2 - Inheritance (#cbseNotes)
Java - InheritanceClass 12 - Informatics Practices
Q1: What do you mean by the term 'inheritance'?
Answer: In OOPs, Inheritance is the process of creating new class (Derived Class or sub-classes) from an existing class (Base Class or Super class). A Sub-class inherits all the properties (data members) and behaviour (method members) of the parent class (Super-class).
The level of Inheritance may be extended i.e. A Sub-class may have their own sub-classes.
In Real-life most of the things exhibit Inheritance relationship.
Q2: What is the importance of 'inheriatnce'?
Answer: Inheritance is important for the following reasons:
① Modelling of Real-world
② Reusability of codes
③ Transitive nature of Inheritance
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