Example 1: Java Program to Convert int to string using valueOf()

class Main{
  public static void main(String[] args){

    // create int variable
    int num1 = 36;
    int num2 = 99;

    // convert int to string
    // using valueOf()
    String str1 = String.valueOf(num1);
    String str2 = String.valueOf(num2);

    // print string variables
    System.out.println(str1);    // 36
    System.out.println(str2);    // 99
  }
}

In the above example, we have used the valueOf() method of the String class to convert the int variables into string.

Note: This is the most preferred way of converting int variables to string in Java.

Example 2: Java Program to Convert int to string using toString()

We can also convert the int variable into string using the toString() method of the Integer class. For example,

class Main{
  public static void main(String[] args){

    // create int variables
    int num1 = 476;
    int num2 = 78656;

    // convert int to string
    // using toString()
    String str1 = Integer.toString(num1);
    String str2 = Integer.toString(num2);

    // print string variables
    System.out.println(str1);    // 476
    System.out.println(str2);    // 78656
  }
}

In the above example, we have used the toString() method of the Integer class to convert the int variables into string.

Example 3: Java Program to Convert int to String using + Operator

class Main{
  public static void main(String[] args){

    // create int variables
    int num1 = 3476;
    int num2 = 8656;

    // convert int to string
    // using + sign
    String str1 = "" + num1;
    String str2 = "" + num2;

    // print string variables
    System.out.println(str1);    // 3476
    System.out.println(str2);    // 8656
  }
}

Notice the line,

String str1 = "" + num1;

Here, we are using the string concatenation operation to convert an integer into the string.

Example 4: Java Program to Convert int to String using format()

class Main{
  public static void main(String[] args){

    // create a int variable
    int num = 9999;

    // convert int to string using format()
    String str = String.format("%d", num);

    System.out.println(str);    // 9999
  }
}

Here, we have used the format() method to format the specified int variable into a string.