Im a beginner plz help to solve this

Question

import java.util.Scanner;
public class Program
{
public static void main(String[] args) {

Scanner sc=new Scanner(System.in);

String x=sc.nextLine();
if(x=hi){
System.out.println ("hi");
}
else{
System.out.println ("do something");

}
}
}

Answer 1

if(x.equals("hi")){
System.out.println ("hi");
}
else{
System.out.println ("do something");
}

Answer 2

/* dont use == to compare strings use below statement so if your string is case sensitive it will be ignored but if you want it to be exactly "hi" then use @Niush statement */

if(x.equalsIgnoreCase("hi");

Answer 3

one more doubt if its integer then
if (x=1) is correct or if (x .equals(1))

Answer 4

Comparing int use this > (x==1)
Comparing String use this > (x.equals("hi"))