Java - Integer toString() method

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Description

The Java Integer toString() method returns a String object representing this Integer's value.

Declaration

Following is the declaration for java.lang.Integer.toString() method

public String toString()

Parameters

NA

Return Value

This method returns a string representation of the value of this object in base 10.

Exception

NA

Example 1

The following example shows the usage of Integer toString() method to get the string representation of the specified int value. We've created an Integer object using a positive int value. Then using toString() method, we're getting the string representation in a variable and printing it.

package com.tutorialspoint;
public class IntegerDemo {
   public static void main(String[] args) {
      Integer i = new Integer(20);
   
      // returns a string representation of the integer value in base 10
      String retval = i.toString();
      System.out.println("Value = " + retval);
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Value = 20

Example 2

The following example shows the usage of Integer toString() method to get the string representation of the specified int value. We've created an Integer object using a negative int value. Then using toString() method, we're getting the string representation in a variable and printing it.

package com.tutorialspoint;
public class IntegerDemo {
   public static void main(String[] args) {

      Integer i = new Integer(-20);
   
      // returns a string representation of the integer value in base 10
      String retval = i.toString();
      System.out.println("Value = " + retval);
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Value = -20

Example 3

The following example shows the usage of Integer toString() method to get the string representation of the specified int value. We've created an Integer object using a zero value. Then using toString() method, we're getting the string representation in a variable and printing it.

package com.tutorialspoint;
public class IntegerDemo {
   public static void main(String[] args) {
      Integer i = new Integer(0);
   
      // returns a string representation of the integer value in base 10
      String retval = i.toString();
      System.out.println("Value = " + retval);
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Value = 0