I am a java beginner and practicing all myself. Please help me out in question stated below

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check weather the sides are of right angled triangled or not
if input is a=10, b=20, c=15 then the output should be triangle:No

i have made the program, please tell me how the statement written by me is wrong

What I have tried:

class Main {
  public static void main(String[] args) {
     int a=10;
     int b=20;
     int c=15;
    
    if((a*a)+(b*b)=(c*c) || (b*b)+(c*c)=(a*a) || (c*c)+(a*a)=(b*b))
    {
      System.out.print("Triangle:Yes");
    }
    else
    {
      System.out.println("Triangle:No");
    }
  }
}

Posted 15-Mar-18 11:32am

Member 13724614

Updated 15-Mar-18 22:25pm

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2 solutions

Solution 2

Go to The Java™ Tutorials[^] where you can study Java at your own pace, with excellent study materials.

Posted 15-Mar-18 22:26pm

Richard MacCutchan

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Mohibur Rashid · Accepted Answer · 2018-03-15T12:49:00

Solution 1

Several issues.
The syntax issue:
= is assignment operator. You are looking for ==

The logic issue:
You are multiplying each variabl 3 times, you can improve that.

Posted 15-Mar-18 12:49pm

Mohibur Rashid

Comments

Member 13724614 15-Mar-18 19:00pm

thank sir. but how can i improve the logic issue. can you give me the statement

Mohibur Rashid 16-Mar-18 0:45am

one idea can be
class Main {
public static void main(String[] args) {
int a=10;
int b=20;
int c=15;
long aa = a*a;
long bb = b*b;
long cc = c*c;

if((aa + bb)==cc || bb+cc==aa || cc+aa==bb)
{
System.out.print("Triangle:Yes");
}
else
{
System.out.println("Triangle:No");
}
}
}

----------------------------------------
another can be

int arr[] = { a, b, c };
Arrays.sort(arr);
if ((arr[0] * arr[0] + arr[1] * arr[1]) == arr[2] * arr[2]) {
System.out.print("Triangle:Yes");
} else {
System.out.println("Triangle:No");
}

Member 13724614 16-Mar-18 15:55pm

thanks a lot sir. I would request you to help in more programs as well if you could