Java Integer toString() method

The toString() method of Java Integer class returns a String object which represents this Integer’s value. The second syntax returns a String object which represents the specified integer. The third syntax returns a string representation of the specified argument in the radix specified by the given radix. Syntax

• public String toString ()
• public static String toString (int i)
• public static String toString (int i, int radix) 

Parameters The parameter ‘i’ represents an integer to be converted to a string and the parameter ‘radix’ represents the radix to use in the string representation. Return Value This method returns a String which represents the same value as this argument in base 10 or in the specified radix. Example 1

public class JavaIntegerToStringExample1 {
    public static void main(String[] args) {
        Integer val=5667;
        String val1=Integer.toString(val);
        //It returns a string representation of the value of this object in base 10.
        System.out.println("String  Value : "+val1);
    }
}

Output

String  Value : 5667

Example 2

public class JavaIntegerToStringExample2 {
    public static void main(String[] args) {
        Integer val=Integer.MAX_VALUE;
        String val1=val.toString();
        //It returns a string representation of the value of this object in base 10.
        System.out.println("String  Value : "+val1);
    }
}

Output

String  Value : 2147483647

Example 3

public class JavaIntegerToStringExample3 {
    public static void main(String[] args) {
        Integer val=566787643;
        int radix=78;
        String val1=Integer.toString(val,radix);
        //It returns a string representation of the value of this object in the     specified radix.
        System.out.println("String  Value : "+val1);
    }
}

Output

String  Value : 566787643

Example 4

public class JavaIntegerToStringExample4 {
    public static void main(String[] args) {
        //passing negative value
        Integer val=-5667;
        String val1=Integer.toString(val);
        System.out.println("Unsigned String  Value : "+val1);
        //calling string class methods
        StringBuffer sf= new StringBuffer(val1);
        StringBuffer reverse=sf.reverse();
        System.out.println("Reverse of "+sf+" : "+reverse);
    }
}

Output

Unsigned String  Value : -5667
Reverse of 7665- : 7665-