You can use any of the following options based on the requirements.

Scanner class

import java.util.Scanner; 
//...
Scanner scan = new Scanner(System.in);
String s = scan.next();
int i = scan.nextInt();

BufferedReader and InputStreamReader classes

import java.io.BufferedReader;
import java.io.InputStreamReader;
//...
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String s = br.readLine();
int i = Integer.parseInt(s);

DataInputStream class

import java.io.DataInputStream;
//...
DataInputStream dis = new DataInputStream(System.in);
int i = dis.readInt();

The readLine method from the DataInputStream class has been deprecated. To get String value, you should use the previous solution with BufferedReader

Console class

import java.io.Console;
//...
Console console = System.console();
String s = console.readLine();
int i = Integer.parseInt(console.readLine());

Apparently, this method does not work well in some IDEs.

Information regarding the code is mentioned in the comments written next to each line.

public static void main(String[] args) {
            int num1 = sc.nextInt();       //take int input
            double num2 = sc.nextDouble();    //take double input
            long num3 = sc.nextLong();      //take long input
            float num4 = sc.nextFloat();     //take float input
            sc.nextLine();      //next line will throw error if you don't use this line of code
            String str = sc.nextLine();      //take String input
    }