Question

How to convert int to String with comma separators in Java

Answer 1

import java.text.NumberFormat;
import java.util.Locale;

public class MyClass {
    public static void main(String args[]) {
        int n = 89875731;
        NumberFormat numberFormat = NumberFormat.getNumberInstance(Locale.US);
        String s = numberFormat.format(n);
        
        System.out.println(s);
    }
}
 
 
 
/*
run:
 
89,875,731

*/

 

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Answer 2

public class MyClass {
    public static void main(String args[]) {
        int n = 89875731;
        String s = String.format("%,d", n);
        
        System.out.println(s);
    }
}
 
 
 
/*
run:
 
89,875,731

*/

 

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Answer 3

import java.text.DecimalFormat;

public class MyClass {
    public static void main(String args[]) {
        int n = 89875731;
        DecimalFormat decimalFormat = new DecimalFormat("#,###");
        String s = decimalFormat.format(n);
        
        System.out.println(s);
    }
}
 
 
 
/*
run:
 
89,875,731

*/

 

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