Question

How to check if all strings are lexically equal in 2D array of strings with Java

Answer 1

import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        String[][] arr2d = {{"java", "java", "java", "java"}, {"java", "java", "java", "c"}};
 
        for (String[] row : arr2d) {
            System.out.println(Arrays.toString(row));
            System.out.println(Arrays.stream(row).distinct().count() < 2);
        }
    }
}
 
 
 
 
 
/*
run:
 
[java, java, java, java]
true
[java, java, java, c]
false

*/

 

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