   Write a program to remove the duplicate elements in an array and print in java?

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Write a program to remove the duplicate elements in an array and print
Eg) Array Elements - 12, 34, 12, 45, 67, 89
O/P: 12,34,45,67,89 posted Apr 22, 2017

+1 vote

public class MyDuplicateElements {
public static int[] removeDuplicates(int[] input){

int j = 0;
int i = 1;
//return if the array length is less than 2
if(input.length < 2){
return input;
}
while(i < input.length){
if(input[i] == input[j]){
i++;
}else{
input[++j] = input[i++];
}
}
int[] output = new int[j+1];
for(int k=0; k<output.length; k++){
output[k] = input[k];
}

return output;
}

public static void main(String a[]){
int[] input1 = {12, 34, 12, 45, 67, 89};
int[] output = removeDuplicates(input1);
for(int i:output){
System.out.print(i+" ");
}
}
}

12,34,45,67,89 answer May 20, 2017
this logic is not correct...output is same as i given.
See one of the number 12 is not included in the series.
That's right that the simplest code to follow
public class MyDuplicateElements {
public static int[] removeDuplicates(int[] input){

int j = 0,flag;
int i = 1;
//return if the array length is less than 2
if(input.length < 2){
return input;
}
while(i < input.length){
flag=0;
for(int k=0;k<i;k++){
if(input[i] == input[k]){
flag=1;
break;
}

}
if(flag==0)
{
input[++j] = input[i];
}
i++;
}

int[] output = new int[j+1];
for(int k=0; k<output.length; k++){
output[k] = input[k];
}

return output;
}

public static void main(String a[]){
int[] input1 = {12, 34, 12, 45, 67, 89};
int[] output = removeDuplicates(input1);
for(int i:output){
System.out.print(i+" ");
}
}
} answer Jul 8, 2018 by anonymous
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