Days To Date In Java

//DAYS TO DATE
class daystodate{
    private int a[]={31,28,31,30,31,30,31,31,30,31,30,31};
    public void convert(int d,int y){
        int m;
        if(y%100!=0&&y%400==0||y%4==0)
        a[1]=29;
        else
        a[0]=28;
        for(m=0;d>a[m];m++){
            d=d-a[m];
        }
        System.out.println("THE CORRECT DATE IS = "+d+"/"+(m+1)+"/"+y);
    }}