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Convert Decimal to Integer

In this section, you will learn to convert a decimal number into an integer.

Convert Decimal to Integer


In this section, you will learn to convert  a decimal number into an integer. The java.lang package provides the functionality to convert a decimal number to an integer type number.

Description Code:

This program helps you in converting a decimal type data into an integer. The parseInt() method gets an integer value as a string. This integer class wraps a value of the primitive type int in an object. A object type integer contain a single field of integer type. The intValue() method converts an int to a string and string to an int.

Here is the code of this program:

import java.lang.*;

public class DecimalToInteger{
  public static void main(String[] argsthrows IOException{
  BufferedReader bf= new BufferedReader(new InputStreamReader(;
  System.out.println("Enter the Decimal number:");
  String str= bf.readLine();
  int value = Integer.parseInt(str);  
  int i = Integer.valueOf(value).intValue();
  System.out.println("Integer number is:= "+ i);

Download this program:

Output of this Program.

C:\corejava>java DecimalToInteger
Enter the Decimal number:
Integer number is:= 13


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December 13, 2012
Convert Decimal to Integer Wrong

This is not logic to convert Decimal to Integer.