Answer Posted / devender/mimshad

jre->jre stand for java run time environment it is use to
run .class file which is generated after compilation.And it
must be present if any body want to run any java programe
in his machine.

Jvm->Java virtual machine.it is abstact computer on which
all java programe run it is consider to be power of java.
It is JVM that makes java a platform independent language.
Each operating system has its own JVM which enables it to
run Java programs irrespective of its development machine.

What is meant by string is immutable?

1001

---

why doesn't java run on all platforms?

980

---

Can we nested try statements in java?

1045

---

This abstract class is correct ? abstract class A { public abstract void Disp(); public abstract void B() { } public absract virtual C() { } }

942

---

What is the static method?

1021

---

How is it possible for two string objects with identical values not to be equal under the == operator?

925

---

What is hashing in java?

976

---

What are java threads?

1066

---

What are internal variables?

941

---

What is an i/o filter?

1671

---

What is gc()?

979

---

Add a value x to array from index l to r where 0 <= l <= r <= n-1

1025

---

What is the use of singleton?

909

---

What are the differences between heap and stack memory in java?

1000

---

What is the difference between the reader/writer class hierarchy and the inputstream/outputstream class hierarchy in java programming?

1050

---