Java/Notes/lesson_19.java at master · HopeMashal/Java · GitHub

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/*_______________________________*/
//! Two Dimensional Arrays(Passing Arrays as a method Parameters)!!!!

package Notes;
import java.util.*;

public class lesson_19 {
  public static Scanner input = new Scanner(System.in);
  public static void main(String[] args){

    System.out.print("Enter the number of row: ");
    int row = input.nextInt();

    System.out.print("Enter the number of column: ");
    int col = input.nextInt();

    int[][] matrix = new int[row][col];
    fillArray(matrix);
    System.out.println("Array Filled! ");
    System.out.println("Array will be printed! ");
    printArray(matrix);
    System.out.println("Array will be summed! ");
    System.out.println("The sum of the array elements is equal "+sumArray(matrix));
    System.out.print("Enter the number to search for: ");
    int searchId=input.nextInt();
    search(matrix, searchId);

  }

  public static void fillArray(int[][] list){
    for(int i =0;i<list.length;i++){
      for(int j=0;j<list[0].length;j++){
        System.out.print("Enter data for row no. "+(i+1)+" and column no. "+(j+1)+" : ");
        list[i][j]=input.nextInt();
      }
    }
  }

  public static void printArray(int[][] list){
    for(int i =0;i<list.length;i++){
      for(int j=0;j<list[0].length;j++){
        System.out.print(list[i][j]+" ");
      }
      System.out.println();
    }
  }

  public static int sumArray(int[][] list){
    int sum=0;
    for(int i =0;i<list.length;i++){
      for(int j=0;j<list[0].length;j++){
        sum +=list[i][j];
      }
    }
    return sum;
  }

  public static void search (int[][] list, int target){
    boolean findValue = false;
    for(int i =0;i<list.length;i++){
      for(int j=0;j<list[0].length;j++){
        if(list[i][j]==target){
          System.out.println("The index of "+target+" is in row no. "+(i+1)+" and column no. "+(j+1));
          findValue = true;
        }
      }
    }
    if (!findValue) System.out.println("The item "+target+" isn't found");
  }
}

/*_______________________________*/