2DarrayWithInLoop.java

int[][] a = 
        {  {99, 42, 74, 83, 100}, 
           {90, 91, 72, 88, 95},
           {88, 61, 74, 89, 96},
           {61, 89, 82, 98, 93},
           {93, 73, 75, 78, 99},
           {50, 65, 92, 87, 94},
           {43, 98, 78, 56, 99}  };

//gia tri can tim
int searchValue = 87;

int col = 0;
int row = 0;

int numberRow = a.length;
int numberCol = a[0].length;

int totalItemsInArrays = numberCol * numberRow;

int itemLoop = 0;
        //chuyen mang 2 chieu thanh mang mot chieu.
        for (itemLoop = 0; itemLoop < totalItemsInArrays -1; ++itemLoop ){
	        //row chay theo row, col chay theo col
	        if(col > numberCol - 1){
		        col = 0;
		        row = row + 1;
	        }
    	    int value = a[row][col];
	        System.out.println(String.format("Item[%d][%d]=%d",col,row,value));
	        //check value 
	        if(value == searchValue){
	            //print out
	            System.out.println("Found value search:" + searchValue);
	            System.out.println("at Index:" + row + "," + col);
	        }
	        col++; 	
        }
    }

Cháu cảm ơn !