NPTEL Java Week 2 Assignment Answers, Hints, Solution
Students, here, in this article I have provided nptel java week 2 assignment answers hints. You can follow these hints to solve your java assignment before the last date.
NPTEL Programming in Java Week 2 Assignment Answers
Q1. What is the output of the following program?
public class Main{
public static void main(String args[]) {
char a = '8';
int b=010;
System.out.println (a+b);
}
}a. 88
b. 8010
c. 64
d. 810
Answer: c. 64
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Q2. Which of the following is generate API documentation in HTML format from Java source code?
a. javac
b. javadoc
c. javap
d. java
Answer: b. javadoc
Q3. Following is a program given for this question.
public class Main{
public static void main(String[] args) {
char[] copyFrom = { 'j', 'a', 'n', 'n', 'p', 't',
'e', 'l', 'j', 'a', 'v', 'a', };
char[] copyTo = new char[9];
System.arraycopy(copyFrom,3, copyTo, 0, 9);What will be the output of the above program?
a. javanptel
b. npteljava
c. janjavanptel
d. jannpteljava
Answer: b. npteljava
Q4. What will happen during the execution of the following code for the command line input?
public class Question {
public static void main(String[] args) {
for (String s: args) { System.out.println(s+args[0]);
}
}
}Consider the following input on command line and select the options with the correct output(s).
Input:
A: “jan java nptel”
B: 1 2 3
a. A: jannptel
javanptel
nptelnptel
b. A: jan java nptel jan java nptel
c. B: 11
21
31
d. B: 12 3 1
Answer: b. A: jan java nptel jan java nptel
c. B: 11
21
31
Q5. Which of the following is/are TRUE about print() and println() methods?
a. print() prints in a single line only and multiple lines cannot be printed in any way.
b. print() prints and then appends a line break.
c. println() prints in a single line only and multiple lines cannot be printed.
d. println() prints and then appends a line break.
Answer: d. println() prints and then appends a line break.
Q6. What was the initial name of Java when it was first developed for embedded systems?
a. Greentalk
b. Oak
c. Java
d. Javac
Answer: a. Greentalk
Q7. Which of the following is a valid declaration of an object of class, say Foo?
a. Foo obj = new Foo;
b. obj = new Foo();
c. Foo obj = new Foo();
d. new Foo obj;
Answer: c. Foo obj = new Foo();
Q8. Following is a program given for this question.
public class Question
{
public static void main(String[] args) {
boolean m=Integer.valueOf (0).equals(Long.valueOf(1));
System.out.println(m);
}What will be the output of the above program?
a. 0
b. 1
c. false
d. true
Answer: c. false
Q9. Which of the following can be used to take input from user during the execution of a program?
a. Using the string array provided as a parameter to the main method.
b. getText() method can be used to get user input from the command line.
c. Scanner class can be used by passing the predefined object System.in
d. Once the execution starts, there is no way to provide user input.
Answer: c. Scanner class can be used by passing the predefined object System.in
Q10. What is the output of the following program?
a. 14
b. 12
c. 15
d. 17
Answer: d. 17
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