Java: Accept three integers and return the middle one
Java Method: Exercise-19 with Solution
Write a Java method that accepts three integers and returns true if one is the middle point between the other two integers, otherwise false.
Pictorial Presentation:
Sample data:
(2, 4, 6) -> true
(2, 8, 5) -> true
(6, 6, 6) -> true
(20, 7, -6) -> true
(1, 2, 5) -> false
(5, 1, 5) -> false
(3, 9, 14) -> false
Sample Solution-1:
Java Code:
import java.util.Scanner;
public class Main {
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
System.out.print("Input the first number: ");
int x = in.nextInt();
System.out.print("Input the second number: ");
int y = in.nextInt();
System.out.print("Input the third number: ");
int z = in.nextInt();
System.out.print("Check whether the three said numbers has a midpoint!\n");
System.out.print(test(x,y,z));
}
public static boolean test(int x, int y, int z){
int max = Math.max(x, Math.max(y,z));
int min = Math.min(x, Math.min(y,z));
double mid_point1 = (max + min) / 2.0;
int mid_point2 = x + y + z - max - min;
return (mid_point1 == mid_point2);
}
}
Sample Output:
Input the first number: 2 Input the second number: 4 Input the third number: 6 Check whether the three said numbers has a midpoint! true
Flowchart :
Sample Solution-2:
Java Code:
import java.util.Scanner;
public class Main {
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
System.out.print("Input the first number: ");
int x = in.nextInt();
System.out.print("Input the second number: ");
int y = in.nextInt();
System.out.print("Input the third number: ");
int z = in.nextInt();
System.out.print("Check whether the three said numbers has a midpoint!\n");
System.out.print(test(x,y,z));
}
public static boolean test(int x, int y, int z) {
boolean midpoint_x = ( y + z == 2 * x);
boolean midpoint_y = ( x + z == 2 * y);
boolean midpoint_z = ( x + y == 2 * z);
return midpoint_x || midpoint_y || midpoint_z;
}
}
Sample Output:
Input the first number: 3 Input the second number: 9 Input the third number: 14 Check whether the three said numbers has a midpoint! false
Flowchart :
Java Code Editor:
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