Java String valueOf() method

Java String valueOf() method converts different types of values into String.

Such as : int to String, long to String, boolean to String, character to String, float to String, double to String, object to String and char array to String.

Syntax:

public static String valueOf(boolean b) 
public static String valueOf(char c) 
public static String valueOf(char[] c) 
public static String valueOf(int i) 
public static String valueOf(long l) 
public static String valueOf(float f) 
public static String valueOf(double d) 
public static String valueOf(Object o)

Returns:

It returns String, representation of given value.

Java String valueOf(char c) method example

public class JavaStringValueOfEx1
{
      public static void main(String[] args)
 {
            // declare a sample string value
            String strValue = "=ROY|N.K.=";
            // convert strValue to character array
            char[] values = strValue.toCharArray();
            // for each element on char array
            for(char c:values){
                  // print the String value of char c
                  System.out.println(String.valueOf(c));
            }
      }
}

Output:

=
R
O
Y
|
N
.
K
.
=

Java String valueOf() method example 2

public class JavaStringValueOfEx2
{ 
    public static void main(String args[])
    { 
        int value=10; 
        String s1=String.valueOf(value); 
        System.out.println(s1+10);//concatenating string with 10 
    }
  }

Output:

1010

Java String valueOf(boolean bol) method example 3

public class JavaStringValueOfEx3
{ 
    public static void main(String[] args)
    {         
        // Boolean to String 
        boolean bol = true;   
        boolean bol2 = false;   
        String s1 = String.valueOf(bol);   
        String s2 = String.valueOf(bol2); 
        System.out.println(s1); 
        System.out.println(s2); 
    } 
}

Output:

true
false

Java String valueOf(float f) and valueOf(double d) Example 4

public class JavaStringValueOfEx4 { 
    public static void main(String[] args) { 
        // Float and Double to String 
        float f  = 15.45f;   
        double d = 15.32; 
        String s1 = String.valueOf(f);   
        String s2 = String.valueOf(d); 
        System.out.println(s1); 
        System.out.println(s2); 
    } 
}

Output:

15.45
15.32

Java String valueOf Example 5

public class JavaStringValueOfEx5 { 
    public static void main(String[] args) { 
        boolean b1=true; 
        byte b2=11;   
        short sh = 12; 
        int i = 13; 
        long l = 14L; 
        float f = 15.5f; 
        double d = 16.5d; 
        char chr[]={'t','u','t','o','r','i','a','l','a','n','d','e','x','a','m','p','l','e'};     
        String s1 = String.valueOf(b1);   
        String s2 = String.valueOf(b2);   
        String s3 = String.valueOf(sh);   
        String s4 = String.valueOf(i);   
        String s5 = String.valueOf(l);   
        String s6 = String.valueOf(f);   
        String s7 = String.valueOf(d);   
        String s8 = String.valueOf(chr);         
        System.out.println(s1); 
        System.out.println(s2); 
        System.out.println(s3); 
        System.out.println(s4); 
        System.out.println(s5); 
        System.out.println(s6); 
        System.out.println(s7); 
        System.out.println(s8);      
    } 
}

Output:

true
11
12
13
14
15.5
16.5
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