How to convert String to Integer and Integer to String in Java

by Online Tutorials Library July 22, 2022

How to convert String to Integer and Integer to String in java

Following is the program to demonstrate it.

File: ConvertStringToInteger.java

 public class ConvertStringToInteger { public static void main(String[] args) {     //1st way String str1 = “5”; int result = Integer.parseInt(str1); // Using Integer.parsrInt() System.out.println(result);           //2nd way String str2 = “5”; Integer result2 = Integer.valueOf(str2); // Using Integer.valueOf() System.out.println(result2);   } } 

Output:

5 5

File: ConvertIntegerToString.java

 public class ConvertIntegerToString{ public static void main(String[] args) {   int x = 5; //1st way String str = Integer.toString(x); // using Integer.toString() System.out.println(str);           //2nd way         String str2 = String.valueOf(x); // using String.valueOf() System.out.println(str2);  } } 

Output:

5 5

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