# Equality - Java
```java
# class Data {
# public int value;
# public Data(int value) {
# this.value = value;
# }
# }
String ab = "ab", c = "c";
# boolean[] equality = new boolean[] {
// Which of the following are true / false?
"abc" == "abc",
"abc" == "ab" + "c",
"abc" == ab + c,
123 == 123,
new Data(123) == new Data(123)
#
# };
#
# for (boolean equal: equality) {
# System.out.println(equal);
# }
```
<https://dev.java/playground/>
<details><summary>C#</summary>
<https://dotnetfiddle.net/#>
```cs
~ using System;
~
~ public class Program
~ {
class Data {
public int value { get; set; }
public Data(int value) { this.value = value; }
}
~ public static void Main()
~ {
String ab = "ab";
String c = "c";
bool[] equality = new bool[] {
"abc" == "abc",
"abc" == "ab" + "c",
"abc" == ab + c,
123 == 123,
new Data(123) == new Data(123)
};
foreach (bool equal in equality) {
Console.WriteLine(equal);
}
~
~ }
~ }
```
</details>
