Dateconvert.java

import java.util.*;

public class Main
{
	public static void main(String[] args)
	{
		

		Scanner input = new Scanner(System.in);

		System.out.print("Enter a date with yyyymm format: \n");
		String number1 = input.next();
		System.out.println(Yyyymm2mmmyy(number1));
	}
	public static String Yyyymm2mmmyy(String input){
		String[] months=new String[]{
			"01",
			"02",
			"03",
			"04",
			"05",
			"06",
			"07",
			"08",
			"09",
			"10",
			"11",
			"12"
			
		};
		
		String[] names=new String[]{"Jan","feb","mar","apr","may","jun","jul","aug","sep","oct","nov","dec"};
		String iny=input.substring(0,4);
		String inm=input.substring(4);
	
		String changed="i";
		for(int i=0;i<names.length;i++){
			if(inm.equals( months[i])){
				return names[i]+iny.substring(2);
			}
		}
		return null;
		//return changed+iny.substring(2);
		
	}
}