import java.util.Scanner;
public class TestDemo 
{
public static void main(String[] args) 
{
		Scanner input=new Scanner(System.in);
		String word="TRUMP";
		char[] key={'T','R','U','M','P'};
		char ch='-';
		String keyChar;
		int len;
		int pos;
		int st=0;
		len=word.length();
		int count=0;
		for(int i=0;i<key.length;i++)
			key[i]='-';
		
		do
		{
			System.out.print("Enter your guess:");
			keyChar=input.next();
			ch=keyChar.charAt(0);
			do
			{
				boolean res=check(word, ch, st, len);
				if(res==true)
					count++;
				pos=getPosition(word, ch, st, len);
				if(pos==-1)
					break;
				key[pos]=ch;
				st=pos+1;
			}while(st<len);
			st=0;
			pos=0;
			display(key, len);
			
		}while(count!=len);
System.out.println("Correct word guessed..! Congratulations :)");
	}
public static boolean check(String word,char ch,
    int st,int len)
	{
		for(int i=st;i<len;i++)
		{
			if(word.charAt(i)==ch)
				return true;
		}
		return false;
	}
	public static int getPosition(String word,char ch,int st,int len)
	{
		for(int i=st;i<len;i++)
	 		if(word.charAt(i)==ch)
			{
				return i;
			}
		return -1;
	}
	public static void display(char[] key,int len)
	{
		System.out.print(key);
		System.out.println();
	}
}

OUTPUT:

Enter your guess:M
---M-
Enter your guess:P
---MP
Enter your guess:T
T--MP
Enter your guess:U
T-UMP
Enter your guess:R
TRUMP
Correct word guessed..! Congratulations :)