How to Convert Int to String in Java

In this post, we are going to convert int type to string in Java. An integer is a data type that holds floating-point values whereas String is a sequence of characters and a class in Java.

To convert int to String there are several ways like the valueOf() method of String class or toString() method of Integer class or a simple string literal that converts an expression to string.

The valueOf() method belongs to String that returns a string of the specified value and The toString() method of Integer class returns a string of the floating-point value.

Here, we are going to see all these conversions with the help of several examples.

Let's create an example to convert an int type to a string. Here, we are using valueOf() method that returns a string from the specified value.

public class Main {
    public static void main(String[] args){
        int val = 10;
        System.out.println(val);
        // int to String
        String str = String.valueOf(val);
        System.out.println(str);
        System.out.println(str.getClass().getName());
    }
}

10 10 java.lang.String

Let's create another example to convert int type to string. Here, we are using toString() method that returns a string of an integer type value.

public class Main {
    public static void main(String[] args){
        int val = 10;
        System.out.println(val);
        // int to String
        String str = Integer.toString(val);
        System.out.println(str);
        System.out.println(str.getClass().getName());
    }
}

10 10 java.lang.String

This is an implicit conversion of int to string type. If we concatenate any type of value to a string then Java converts that expression into a string and returns a string as a result.

public class Main {
    public static void main(String[] args){
        int val = 10;
        System.out.println(val);
        // int to String
        String str = ""+val;
        System.out.println(str);
        System.out.println(str.getClass().getName());
    }
}

10 10 java.lang.String