Core Java Programming Challenges #20 | Coding Challenges | Naresh IT

Core Java Programming Challenges #20 | Coding Challenges | Naresh IT

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[sreedharkamera]

class Test
{

public static void main(String[] args)
{
int ind=0;
ArrayList<String> rem=new ArrayList<String>();
rem.add("10");
rem.add("2");
rem.add("20");
rem.add("2");
rem.add("30");
rem.add("2");

ind=rem.size();
System.out.println(rem);

rem.remove(ind-1);

System.out.println(rem);

rem.remove("2");

System.out.println(rem);
}
}

[abhayshivhare]

public class Main {

public static void main(String[] args){
ArrayList arr =new ArrayList(10);
arr.add(10);
arr.add(2);
arr.add(20);
arr.add(2);
arr.add(30);
arr.add(2);
System.out.println(arr);
arr.remove(arr.size()-1);
System.out.println(arr);
Integer a= new Integer(2);
arr.remove(a);
System.out.println(arr);

}

[Ramesh-cnpf]

Really helpfull!! , Please upload more and more java vedios

[cricbuffofficial]

import java.util.*;
public class Test{

public static void main(String [] args)
{
ArrayList<Integer> list=new ArrayList<Integer>();
list.add(10);
list.add(2);
list.add(20);
list.add(2);
list.add(30);
list.add(2);

System.out.println(list);

list.remove(5);
System.out.println(list);
list.remove(new Integer(2));
System.out.println(list);

}
}
Output:-[10, 2, 20, 2, 30, 2]
6
[10, 2, 20, 2, 30]
[10, 20, 2, 30]

[Yogesh-ldjs]

import java.util.ArrayList;
class Challenge20 {
public static void main(String[] args) {
ArrayList<Integer> a=new ArrayList();
a.add(10);
a.add(2);
a.add(20);
a.add(2);
a.add(30);
a.add(2);
int last=a.size()-1;
a.remove(last);
System.out.println(a);
Integer i=new Integer(2);
a.remove(i);
System.out.println(a);
}
}

[icricfan]

import java.util.ArrayList;

public class Collect {

public static void main(String[] args) {
ArrayList<Integer> a1 = new ArrayList<>();
a1.add(10);
a1.add(2);
a1.add(20);
a1.add(2);
a1.add(30);
a1.add(2);

Collect c = new Collect();

c.remove(a1);
System.out.println("After removing the last element: " + a1);
c.remove(a1, 1);
System.out.println("After removing element at index 2: " + a1);
}

public void remove(ArrayList<Integer> al){
al.remove(al.size()-1);
}

public void remove(ArrayList<Integer> al, int index){
al.remove(index);
}

}

[rohitjaiswal]

package com.nt;

import java.util.ArrayList;

import sun.security.util.Length;

public class chal20 extends ArrayList<Integer>{

public static void main(String[] args) {
ArrayList<Object> al=new ArrayList<>();

al.add(10);
al.add(2);
al.add(20);
al.add(2);
al.add(30);
al.add(2);

//here removing object from ArrayList in three ways..

al.remove(1); //its removing first element by element
Integer a=new Integer(2); //its removing second 2 value from list using Object
al.remove(a);
al.remove(al.size()-1); //its removing last index element from list using size();

System.out.println(al);
}



}

[nishantraj]

import java.util.*;
public class Test{
public static void main(String [] args)
{
Scanner sc= new Scanner(System.in);
ArrayList<Integer> l = new ArrayList<Integer>();
for(int i=0; i<5;i++)
{
l.add(sc.nextInt());
}
System.out.println("The inputs are
for( Integer I : l)
{
System.out.print(I);
}
l.remove(4);
l.remove(2);
System.out.println();
for(int i : l)
{
System.out.print(i+" ");
}


}
}