premkarthi20
BAN USERimport java.util.*;
public class Firstduplicate {
public static void main(String[] args) {
// TODO code application logic here
HashSet hs = new HashSet();
int[] array = {4,3,1,2,5,9,5,4};
int i=0;
while(hs.add(array[i]))
{
i++;
}
System.out.println(array[i]);
}
}
public class Reversestring {
public static void main(String[] args) {
String s ="Hello world how r u ?";
String[] a = s.split(" ");
System.out.println(a.length);
String p="";
for(int i=a.length-1;i>=0;i--)
{
p=p+a[i]+" ";
}
System.out.println(p);
}
}
public class Encoding {
public static void main(String[] args) {
String x=" ";
String s="aaccbbddeedd8888888888";
s=s+" ";
char[] c=s.toCharArray();
String p="";
for(int i=0;i<c.length;i++)
{
int k=1;
if(i+1<c.length)
{
while(c[i]==c[i+1])
{
k++;
i++;
}
String l= Integer.toString(k);
p=c[i]+l;
x=x+p;
//System.out.print(x);
}
}
System.out.println(x);
}
}
import java.util.HashSet;
- premkarthi20 December 14, 2013public class Duplicatesin2Arrays {
public static void main(String[] args) {
int[] array1 ={1,2,3,4,5};
int[] array2 ={3,4,5,6,7};
HashSet hs = new HashSet();
int i;
for(i=0;i<array1.length;i++)
{
hs.add(array1[i]);
}
int j=0;
for(i=0;i<array2.length;i++)
{
if(!hs.add(array2[i]))
{
j++;
System.out.println(array2[i]);
}
}
System.out.println("The number of duplicates present is "+j);
}
}