jerry的成長之路

思考進程

1. 畫出3*3的陣列
2. random()出1~30隨機數字進入陣列
3. 加總存到z陣列
4. 印出z陣列

• public class ArrayTotal{
  		public static void main(String args[]) {
  			 int arrayX[][]={{1,2,3},{4,5,6},{7,8,9}};			
  			 int arrayY[][]={{1,2,3},{4,5,6},{7,8,9}};
  			 int arrayZ[][]={{1,2,3},{4,5,6},{7,8,9}};
  			 int sum=0;
  			 
  				System.out.println("我是陣列Y");			 
  				RandomArray(arrayY);
  				display(arrayY);
  				System.out.println("----------------");	
  					
  				System.out.println("我是陣列X");						
  				RandomArray(arrayX);
  				display(arrayX);
  				System.out.println("----------------");	
  				
  				sum=sum(arrayZ,arrayX,arrayY);
  				System.out.println("我是陣列Z=X+Y");				
  				display(arrayZ);						
  				System.out.println("----------------");	
  				
  				System.out.println("我是總和:"+sum);
  			
  		}			
  		public static void RandomArray(int[][] arrayc){
  				for(int i=0;i<arrayc.length;i++){				
  						for(int j=0;j<arrayc[i].length;j++){
  							int r = (int)(30*java.lang.Math.random());
  							arrayc[i][j]=r;
  						}
  
  				}	
  		}
  		public static int sum(int[][] arrayZ,int[][] arrayX,int[][] arrayY){
  				int	sum=0;
  				for(int i=0;i<arrayZ.length;i++){	
  										
  						for(int j=0;j<arrayZ[i].length;j++){
  								arrayZ[i][j]=arrayX[i][j]+arrayY[i][j];
  								  sum += arrayZ[i][j];	
  						}
  				 }	return sum;
  		}
  		public static void display(int[][] arrayb){	
  				
  					for(int k=0;k<arrayb.length;k++){				
  						for(int l=0;l<arrayb[k].length;l++){
  							int t=arrayb[k][l];
  								System.out.print(t+"  ");
  						}System.out.println();					
  				
  					}	
  		}
  }