Answer Posted / anjan singh

import java.io.*;

public class Sample {

/**
* @param args
*/


public static void main(String[] args) {
// TODO Auto-generated method stub
try
{
BufferedReader br= new BufferedReader
(new InputStreamReader(System.in));
System.out.println("enter a sentence:");
String str = br.readLine();
str = str.trim();
String[] strArr = str.split(" ");
for(int i=0;i<strArr.length;i++)
for(int
j=i+1;j<strArr.length;j++)
if(strArr[j].length()
> strArr[i].length())
{
String
x=strArr[j];
strArr[j]
=strArr[i];
strArr[i]=x;
}

System.out.println("output:-");
for(int i=0;i<strArr.length;i++)
System.out.println(strArr[i]);
}
catch(Exception e){}
}

}

Can list have duplicates in java?

956

---

what is collatration?

3324

---

When is update method called?

1194

---

Explain access specifiers?

1238

---

Why synchronization is important in java?

1080

---

Given a singly linked list, find the middle of the list in a single traversal without using temporary variable.

1098

---

Make a data structure and implement an algorithm to print all the files in a directory. (The root directory can have sub-directories too.)

1378

---

what is meant wrapper classes?

1294

---

How to display names of all components in a Container?

2986

---

Difference between concurrent hashmap and hashtable and collections

1125

---

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

985

---

What do you understand by an io stream?

1102

---

How do you replace a string in java?

1052

---

What is string pool?

1213

---

Is there any difference between nested classes and inner classes?

1161

---