Answer Posted / prachi

Java methods are similar to functions or procedures in other
programming languages.

Every Java program must have one main() method.

Here is the main() method from a Java program which prints
"Hello World":

public static void main (String[] args) {
// This Java program prints "Hello World!"
System.out.println{"Hello World!");


A constructor creates an Object of the class that it is in
by initializing all the instance variables and creating a
place in memory to hold the Object. It is always used with
the keyword new and then the Class name. For instance, new
String(); constructs a new String object.

COnstructors are basically used to initialize the attributes
of the class.

What are accessor methods in java?

753

---

Can java arraylist hold different types?

725

---

What kind of variables can a class consist?

795

---

Explain jvm, jre, and jdk?

783

---

What is the use of optional ?

788

---

How do you avoid global variables?

775

---

What is meant by distributed application? Why are we using that in our application?

754

---

What is dot operator?

787

---

What is a JAR file?

790

---

What class allows you to read objects directly from a stream?

1111

---

Explain about abstract classes in java?

802

---

What is string immutability?

741

---

Explain an algorithm to find depth of a binary tree.

791

---

What is the purpose of using bufferedinputstream and bufferedoutputstream classes?

802

---

Can we override constructor in java?

804

---