Answer Posted / pratiksha

import java.util.*;
class alpha
{
String let;
public alpha(String l)
{
this.let=l;
}
}

public class Duplicateletters
{
public static void main(String []args)
{
int i=0;
String[] letters = {"a", "b", "b", "c" ,"a", "d","a"};
ArrayList<alpha> a = new ArrayList<alpha>();
for(i=0;i<letters.length;i++)
{
a.add(new alpha(letters[i]));
}
String let1=null;
Iterator<alpha> i1 = a.iterator();
while(i1.hasNext())
{
alpha a1 = i1.next();
let1=a1.let;
}
int j=0;
Iterator<alpha> i2 = a.iterator();
while(i2.hasNext())
{

alpha a2 = i2.next();
if(let1==a2.let)
{
j=j+1;
}
}
System.out.println(j);

}
}

Why Do I Get A "permission Denied" Error After Downloading The .jnlp Java Launcher For The Vkvm?

871

---

What are three advantages of using functions?

773

---

Name few java.lang classes introduced with java 8 ?

769

---

What is the difference between inner class and nested class?

784

---

What is field name?

789

---

How do you escape sequences in java?

826

---

What do you mean by light weight and heavy weight components?

773

---

What is the locale class in java programming?

769

---

How can you say java is object oriented?

843

---

What do you mean by constant time complexity?

848

---

How can we create an immutable class in java?

828

---

What is meant by class?

786

---

Why does the integer quotient -0/3 yield 0, but the double quotient -0.0/3.0 yields – 0.0?

838

---

Can you call a method in a method?

785

---

how we can create packages in java?

730

---