Java String format() method

Java String format() method

Java format() method of java string returns the formatted string by provided locale, format, and arguments.

If you do not define the locale in the String.format() method, calling the Locale.getDefault() method would use the locale by default.

The java language format() method is like the sprint() function in c language, and the java language printf() method.

Internal implementation

public static String format(String format, Object... args) 
{  
       return new Formatter().format(format, args).toString();  
 }  

Signature

public static String format(String format, Object... args) 

Parameter

Locale - defines where the format() method is to be implemented.

Type - String format.

Args - Create string arguments. It may be zero, or more.

Returns

formatted string

String format() method example 1

public class FormatExample
{  
public static void main(String args[])
{  
String name="Pinky";  
String uf1=String.format("name is %s",name);  
String uf2=String.format("value is %f",12.653);  
String uf3=String.format("value is %12.65f",12.653);  
System.out.println(uf1);  
System.out.println(uf2);  
System.out.println(uf3);  
}
}  

String format Method Example 2

public class FormatExample2 
{  
    public static void main(String[] args) 
	{  
        String strln1 = String.format("%d", 50);           
        String strln2 = String.format("%s", "Sujata Singh");   
        String strln3 = String.format("%f", 50.87);        
        String strln4 = String.format("%x", 50);   
        String strln5 = String.format("%c", 's');           
        System.out.println(strln1);  
        System.out.println(strln2);  
        System.out.println(strln3);  
        System.out.println(strln4);  
        System.out.println(strln5);  
    }  
  
}

Java String Format Specifiers