Fix build warnings

src/main/java/com/mattrixwv/matrix/LongMatrix.java

@@ -1,7 +1,3 @@
-//Matrix/src/main/java/com/mattrixwv/matrix/LongMatrix.java
-//Mattrixwv
-// Created: 02-10-22
-//Modified: 08-11-24
 package com.mattrixwv.matrix;
 
 
@@ -26,18 +22,17 @@ public class LongMatrix{
 
 	//?Helper functions
 	/**
-	 * Sets the matrix grid to the specified 2D array. Validates the input to ensure
-	 * all rows are of equal length.
+	 * Validates the input to ensure all rows are of equal length.
 	 *
 	 * @param grid The 2D array to set as the matrix grid.
-	 * @throws InvalidRowSizeException If the rows of the matrix are not all the same length.
+	 * @return the new validated grid
 	 */
-	protected void setGrid(long[][] grid){
+	private long[][] validateGrid(long[][] grid){
 		if(grid.length == 0){
-			this.grid = new long[0][0];
+			return new long[0][0];
 		}
 		else if(grid[0].length == 0){
-			this.grid = new long[grid.length][0];
+			return new long[grid.length][0];
 		}
 		else{
 			//Make sure all rows are the same length
@@ -55,9 +50,19 @@ public class LongMatrix{
 			}
 
 			//Save the new grid
-			this.grid = newGrid;
+			return newGrid;
 		}
 	}
+	/**
+	 * Sets the matrix grid to the specified 2D array. Validates the input to ensure
+	 * all rows are of equal length.
+	 *
+	 * @param grid The 2D array to set as the matrix grid.
+	 * @throws InvalidRowSizeException If the rows of the matrix are not all the same length.
+	 */
+	protected void setGrid(long[][] grid){
+		this.grid = validateGrid(grid);
+	}
 	/**
 	 * Creates a deep copy of the matrix grid.
 	 *
@@ -158,7 +163,7 @@ public class LongMatrix{
 	 * @param grid The 2D array to initialize the matrix with.
 	 */
 	public LongMatrix(long[][] grid){
-		setGrid(grid);
+		this.grid = validateGrid(grid);
 	}
 	/**
 	 * Constructs a copy of the specified matrix.
@@ -166,7 +171,7 @@ public class LongMatrix{
 	 * @param matrix The matrix to copy.
 	 */
 	public LongMatrix(LongMatrix matrix){
-		setGrid(matrix.grid);
+		this.grid = validateGrid(matrix.grid);
 	}
 	/**
 	 * Constructs a matrix with the specified number of rows and columns, filled with the specified value.