Hey, sorry for late reply, please try this code:
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Use the name of the function as mentioned in the code, and add () after the name, and remove the semicolon from the end. It will work.

Try this,
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public class TriangleType {

public static void main(String[] args) {
int side1 = 3;
int side2 = 4;
int side3 = 5;

int result = checkTriangleType(side1, side2, side3);

switch (result) {
case 1:
System.out.println("Scalene Triangle");
break;
case 2:
System.out.println("Isosceles Triangle");
break;
case 3:
System.out.println("Equilateral Triangle");
break;
case 4:
System.out.println("Error: Not a valid triangle");
break;
}
}

public static int checkTriangleType(int side1, int side2, int side3) {
if (side1 > 0 && side2 > 0 && side3 > 0) {
if ((side1 + side2 > side3) && (side2 + side3 > side1) && (side3 + side1 > side2)) {
if (side1 == side2 && side2 == side3) {
return 3; // Equilateral Triangle
} else if (side1 == side2 || side2 == side3 || side3 == side1) {
return 2; // Isosceles Triangle
} else {
return 1; // Scalene Triangle
}
} else {
return 4; // Error: Not a valid triangle
}
} else {
return 4; // Error: Not a valid triangle (negative side length)
}
}
}
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Try this for the last part of the code,
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let p = 12;
// write code here
p++;
console.log(p);
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We will improve the instructions for the exercise.

This is the correct answer:
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let x = true;
let y = false;

// apply AND operator
console.log(x && !y)

// apply OR operator
console.log(!x || y)
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Here is the correct answer:
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My Registration Form

First Name

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You missed adding the
tag, and you also had the closing tag wrong and the















***

This is the correct code for this lesson:
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let i = 0;
const str = "studytonight";
// write your code here
while (i < str.length)
{
console.log(str[i] + "");
i++;
}
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Please share the level number and the lesson number so that we can help you.

It is OK. In this lesson, you will get error. Just click on Submit and proceed to the next lesson. It will work.

There is some issue with blanks, if you revisit the app, it should be fixed now.

This is the correct code:
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package main
import "fmt"

func areaOfRect(length float64, breadth float64) float64{
// write code here
return length*breadth
}

func main() {
area := areaOfRect(7,9)
fmt.Println("Area of Rectangle is:", area)
}
***