How to control temp sensor digits?

[alib27]

I'm making my arduino uno read and change the temperture of a heated glove and read the values onto an oled screen. Although, currently the temp displayed on the screen is 2 decimal places and I want it to be either 1 or none. I am using a thermistor to read the temperature and the website I got the code from is Make an Arduino Temperature Sensor (Thermistor Tutorial) .

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define OLED_WIDTH 128 // OLED display width,  in pixels
#define OLED_HEIGHT 64 // OLED display height, in pixels

// declare an SSD1306 display object connected to I2C
Adafruit_SSD1306 oled(OLED_WIDTH, OLED_HEIGHT, &Wire, -1);

int buttonPin_down = 8;
int buttonPin_up = 12;
int relay = 7;
int value = 30;
int ThermistorPin = A3;
int Vo;
float R1 = 10000;
float logR2, R2, T, Tc, Tf;
float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;

void setup() {
  
pinMode(relay, OUTPUT);

  Serial.begin(9600);
// initialize OLED display with address 0x3C for 128x64
if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
  Serial.println(F("SSD1306 allocation failed"));
  while (true);
}

delay(2000);         
  
  oled.clearDisplay(); 

}

void loop() {

  Serial.println(value);

  Vo = analogRead(ThermistorPin);
  Serial.print ("  Vo =");
  Serial.print(Vo);
  R2 = R1 * (1023.0 / (float)Vo - 1.0);
  Serial.print("\t R2 =");
  Serial.print(R2);
  logR2 = log(R2);
  Serial.print("\t  logR2 =");
  Serial.print(logR2);
  T = (1.0 / (c1 + c2 * logR2 + c3 * logR2 * logR2 * logR2));
  Serial.print("\t  T =");
  Serial.print(T);
  Tc = T - 273.15;
  // Tf = (Tc * 9.0)/ 5.0 + 32.0;


  Serial.print("\t  Temperature: ");
  Serial.print(Tc);
  Serial.println(" C");
  
 if(Tc < value)
 digitalWrite(relay, LOW);
 else
 digitalWrite(relay, HIGH);

  
  if(digitalRead(buttonPin_up) == HIGH)
    ++ value;
  
  if(digitalRead(buttonPin_down) == HIGH)
    -- value;

oled.setTextSize(2);        
  oled.setTextColor(WHITE, BLACK);    
  oled.setCursor(0, 13);       
  oled.println(Tc); 
  oled.display();    

 oled.setTextSize(1);         
  oled.setTextColor(WHITE, BLACK);    
  oled.setCursor(0, 0);       
  oled.println("Real Temp:"); 
  oled.display();


 oled.setTextSize(2);         
  oled.setTextColor(WHITE, BLACK);    
  oled.setCursor(65, 13);       
  oled.println("C"); 
  oled.display();
 
 oled.setTextSize(2);         
  oled.setTextColor(WHITE, BLACK);    
  oled.setCursor(0, 45);       
  oled.println(value); 
  oled.display();    

 oled.setTextSize(1);         
  oled.setTextColor(WHITE, BLACK);    
  oled.setCursor(0, 32);       
  oled.println("Set Temp:"); 
  oled.display();


 oled.setTextSize(2);         
  oled.setTextColor(WHITE, BLACK);    
  oled.setCursor(65, 45);       
  oled.println("C"); 
  oled.display();

delay(300);

}