How to convert String to Integer in java

This content originally appeared on DEV Community and was authored by NJ

for explanation watch the video

import java.util.*;
import java.lang.*;
class Demo{
    public static void main(String[] args){
        String s = "9999";
        int num1 = Integer.parseInt(s);
        System.out.println(num1);
        int num2 = Integer.valueOf(s);
        System.out.println(num2);
    }   
}

This content originally appeared on DEV Community and was authored by NJ

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