Write a Java program to find the largest number from three numbers input by the user.
Answers
Here we will write two java programs to find the largest among three numbers. 1) Using if-else..if 2) Using nested If
To understand these programs you should have the knowledge of if..else-if statement in Java. If you are new to java start from Core Java tutorial.
Example 1: Finding largest of three numbers using if-else..if
public class JavaExample{
public static void main(String[] args) {
int num1 = 10, num2 = 20, num3 = 7;
if( num1 >= num2 && num1 >= num3)
System.out.println(num1+" is the largest Number");
else if (num2 >= num1 && num2 >= num3)
System.out.println(num2+" is the largest Number");
else
System.out.println(num3+" is the largest Number");
}
}
Output:
20 is the largest Number
Example 2: Program to find largest number among three numbers using nested if
public class JavaExample{
public static void main(String[] args) {
int num1 = 10, num2 = 20, num3 = 7;
if(num1 >= num2) {
if(num1 >= num3)
/* This will only execute if conditions given in both
* the if blocks are true, which means num1 is greater
* than num2 and num3
*/
System.out.println(num1+" is the largest Number");
else
/* This will only execute if the condition in outer if
* is true and condition in inner if is false. which
* means num1 is grater than num2 but less than num3.
* which means num3 is the largest
*/
System.out.println(num3+" is the largest Number");
}
else {
if(num2 >= num3)
/* This will execute if the condition in outer if is false
* and inner if is true which means num3 is greater than num1
* but num2 is greater than num3. That means num2 is largest
*/
System.out.println(num2+" is the largest Number");
else
/* This will execute if the condition in outer if is false
* and inner if is false which means num3 is greater than num1
* and num2. That means num3 is largest
*/
System.out.println(num3+" is the largest Number");
}
}
}
Output:
20 is the largest Number
Answer:
Java Program to Find the Biggest of 3 Numbers
public class Biggest_Number.
int x, y, z;
Scanner s = new Scanner(System.
System. out. print("Enter the first number:");
x = s. nextInt();
System. out. print("Enter the second number:");
y = s. nextInt();
System. out. print("Enter the third number:");
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