Programming error -Java

public class Clock
{
private int newHour;
private int newMinutes;
private int newSeconds;

public Clock ()
{
}
public Clock (int newHour, int newMinutes, int newSeconds)
{
this.newHour = newHour;
this.newMinutes = newMinutes;
this.newSeconds = newSeconds;
}

public int getNewHour(int newHour){
return this.newHour;
}
public int getNewMinutes (int newMinutes){
return this.newMinutes;
}
public int getNewSeconds (int newSeconds){
return this.newSeconds;
}

public void setHour(int newHour){
    this.setHour = setHour;
}
public void setMinutes (int newMinutes){
    this.newMinutes = newMinutes;
}
public void setSeconds (int newSeconds){
    this.newSeconds = newSeconds;
}

public void display (){
System.out.println (int newHour + int newMinutes + int newSeconds);

public String showTime (){
System.out.println ("hh:"+ "mm:"+"ss");
}

public static void main(String[] args)
{
    Clock objClock = new Clock();
    objClock.showTime();
    objClock.display();
}

}