How to compare string with and withod using equals

+++String comparison with using equals ++++
package java_interview_logics_practice;

public class CompareStringWithEqual {

    public static void main(String[] args) {
        String s1="abcd";
        String s2="abcd";
        if(s1.equals(s2))
        {
            System.out.println("s1 is equals with s2 :");
        }
        else
        {
            System.out.println("s1 is not equals with s2 :");
        }

    }

}

+++++++++String comparison without using Equals  ++++++

package java_interview_logics_practice;

public class CompareStringWithoutEquals {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
String s1="abcd";
String s2="abcd";
if(s1.length()==s2.length())
{
    for(int i=0;i<s1.length();i++)
    {
        if(s1.charAt(i)!=s2.charAt(i))
        {
            System.out.println("String "+s1+" is not equal to string "+s2);
            break;
        }
    }
     System.out.println("String "+s1+" is equal to string "+s2);
}
else
{
   
    System.out.println("String "+s1+" is not equal to string "+s2);
}

}


    }