How do you check if a string is not equal to an object?

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I ave a code where I want to use != sign. But since I am using String, How do I not equals Sign. Hers is my code. So I want all this statement not to equal to each other so it can print Tie Game.

Java

if (Array[0] == Array[currentPlayer] &&  Array [1] ==
   Array[currentPlayer] && Array [2] == Array[currentPlayer])

The above code is when everything equals to each other. But I want this statements not to equal each other.
For example,

Java

Array[0] == Array [currentPlayer] && Array[1] == Array [currentPlayer] 

&& Array[2]== Array [currentPlayer]  doesnot equal Array[0] == Array [currentPlayer]

&& Array[1] == Array [currentPlayer] && Array[2]== Array[currentPlayer]

then print Tie Game.

Keep in mind that I have not used Int or Char, I am using String.

Posted 18-May-15 7:44am

Jainam Patel

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Maciej Los 18-May-15 14:54pm

Why don't you use classes and ArrayList?

Maciej Los 18-May-15 15:04pm

https://docs.oracle.com/javase/tutorial/java/data/comparestrings.html

2 solutions

Solution 1

You use the equals method.

Java

if (!someVariable.equals("Bob"))
    System.out.println("Is not Bob!");
else
    System.out.println("Is Bob!!");

Check out this link for more details:
Java - String equals() Method[^]

Posted 18-May-15 7:58am

virusstorm

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Maciej Los · Accepted Answer · 2015-05-18T09:50:00

Have a look here: Comparing Strings and Portions of Strings[^]

As i mentioned in comment, you have to operate on data, not on strings. Java is really powerful programming language. It enables to create custom classes, such as

Java

//definition
public class Player{
    public String Name;
    public Int Score;

    public Player(String n, Int s){
        Name = n;
        Score = s;
    }

    public toString() {
        return Name + "'s score is: " + Score.toString();
    }
}

//Implementation:
ArrayList<player> players = new ArrayList<player>();
players.Add(new Player("Adam", 50));
players.Add(new Player("Eve", 55));

//other stuff...
Player player1 = players.get(0);
Player player2 = players.get(1);
if(player1.equals(player2)){
//two objects are equal on Name and Score
}

Do you see the difference?

For further information about comparing objects in Java, please see: Java Programming: Comparing Objects[^]

How do you check if a string is not equal to an object?

2 solutions

Solution 2

Solution 1

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