Answer Posted / seshadri pera

Threads are synchronized in two ways.

1) block level
2) Method level

Block level synhronization is the better performance
compare to method level.

Block Level:
see the code syntax for block level
synchronized {..
....//code to lock the specific object here..
...}

Method Level:
See the syntax
public void synchronized XXXMethodName(Parameters or
object to acquire locking){.....
...}

What is treeset and treemap in java?

1137

---

What is meant by method?

1177

---

What is the vector class in java programming?

1137

---

What does substring mean?

1027

---

What is final keyword?

1235

---

What is object cloning in Java?

1146

---

What is the driver class?

1089

---

What is the independent variable in an experiment?

999

---

Why call by value prevents parameter value change?

1123

---

How many JVMs can run on a single machine and what is the meaning of Just-In-Time (JIT) compiler?

1544

---

How does class forname work in java?

1022

---

What is mean by exception?

1076

---

What about instanceof operator in java?

1065

---

Which class is used by server applications to obtain a port and listen for client requests?

1016

---

What will be the output of round(3.7) and ceil(3.7)?

1166

---