Table of Contents
Java program to subtraction of two numbers | 5 different Methods
In this tutorial, we will discuss the Java program to subtraction of two numbers
In this post, we are going to learn how to find subtraction of two numbers via different 5 ways
Subtraction of two numbers
Subtract of two numbers – Standard method
Program 1
public class SubtractTwoNum{
public static void main(String args[]){
int num1=35,num2=56,sub;
//declare and initialize variables num1,num2,sub;
sub=num2-num1;//find subtract of two numbers
System.out.println("Subtract of two numbers: "+sub);
//display the subtraction of two numners
}
}
When the above code is executed, it produces the following result
Subtract of two numbers:21
In this program,
- integer variables num1,num2 are declared and initialized
- The num1 and num2 both are subtracted together and the value is asigned to the variable sub.
- Then,the program is displayed the output of subtraction using System.out.println();
Subtract of two numbers – Entered by user
Program 2
import java.util.Scanner;
public class SubtractTwoNum1{
public static void main(String args[]){
int sub;//declare variable to find subtraction
Scanner scan=new Scanner(System.in);
//create a scanner instance for receives input
// from the user - input from keyboard
System.out.print("Enter the value to num1: ");
int num1=scan.nextInt();
System.out.print("Enter the value to num2: ");
int num2=scan.nextInt();
sub=num2-num1;//find subtract of two numbers
System.out.print("subtraction of "+num2+"-"+num1+" :"+sub);
//display the subtraction of two numners
}
}
When the above code is executed, it produces the following result
Enter the value to num1: 125 Enter the value to num2: 230 subtraction of 230-125 :105
In the program,
- Declare variables num1, num2, sub
- The program asks input from the user
- Then the user enters the input values for num1, num2.
- The program will read the input using scanner class and store the variables num1 and num2 respectively
- The num1 and num2 both are subtracted together and the value assigned to the sub variable
- Then, the program displays the value of the sub using System.out.println() function
Subtract of two numbers – Using user defined method
Program 3
import java.util.Scanner;
public class SubtractTwoNum2{
public static void main(String args[]){
int sub;//declare variable to find subtraction
Scanner scan=new Scanner(System.in);
//create a scanner instance for receives input
// from the user - input from keyboard
System.out.print("Enter the value to num1: ");
int num1=scan.nextInt();
System.out.print("Enter the value to num2: ");
int num2=scan.nextInt();
System.out.print("subtraction of "+num2+"-"+num1+" :"+subtraction(num1,num2));
//display the subtraction of two numners
}
static int subtraction(int x,int y){
return y-x;
}
}
When the above code is executed, it produces the following result
Case 1
Enter the value to num1: 123 Enter the value to num2: 234 subtraction of 230-125 :111
Case 2
Enter the value to num1: 234 Enter the value to num2: 123 subtraction of 230-125 :-111
In the program,
- Declare variables num1, num2, sub
- The program asks input from the user
- Then the user enters the input values for num1, num2.
- The program will read the input using scanner class and store the variables num1 and num2 respectively
- Define the method(subtraction()) for find subtraction
- Call the method to produced output
- finally, the program displays the value of subtraction using System.out.println() function
Subtract of two numbers – Using recursion
Program 4
import java.util.Scanner;
public class SubtractTwoNum3{
public static void main(String args[]){
int sub;//declare variable to find subtraction
Scanner scan=new Scanner(System.in);
//create a scanner instance for receives input
// from the user - input from keyboard
System.out.print("Enter the value to num1: ");
int num1=scan.nextInt();
System.out.print("Enter the value to num2: ");
int num2=scan.nextInt();
System.out.print("subtraction of "+num2+"-"+num1+" :"+subtraction(num1,num2));
//display the subtraction of two numners
}
static int subtraction(int num1,int num2){
if(num2==0)
return num1;
else
return subtraction((num1-1),(num2-1));
}
}
When the above code is executed, it produces the following result
Case 1
Enter the value to num1: 789 Enter the value to num2: 456 subtraction of 230-125 :333
Case 2
Enter the value to num1: 345 Enter the value to num2: 567 subtraction of 230-125 :-222
In the program,
- Declare variables num1, num2 and sub
- The program asks input from the user
- Then the user enters the input values for num1, num2.
- The program will read the input using scanner class and store the variables num1 and num2 respectively
- Define the method(subtraction()) for find subtraction recursively
- Call the method to produced output
- finally, the program displays the value of subtraction using System.out.println() function
Subtract of two numbers – Without Arithmetic operator
Program 5
import java.util.Scanner;
public class SubtractTwoNum4{
public static void main(String args[]){
int sub;//declare variable to find subtraction
Scanner scan=new Scanner(System.in);
//create a scanner instance for receives input
// from the user - input from keyboard
System.out.print("Enter the value to num1: ");
int num1=scan.nextInt();
System.out.print("Enter the value to num2: ");
int num2=scan.nextInt();
int n1=num1;
int n2=num2;
System.out.print("subtraction of "+n1+"-"+n2+" :"+subtract(num1,num2));
//display the subtraction of two numners
}
static int subtract(int num1,int num2)
{
if(num2==0)
return num1;
return subtract(num1^num2,(~num1 & num2)<<1);
}
}
When the above code is executed, it produces the following result
Case 1
Enter the value to num1: 678 Enter the value to num2: 789 subtraction of 230-125 :-111
Case 2
Enter the value to num1: 765 Enter the value to num2: 543 subtraction of 230-125 :222
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