我正在編寫一個打印出填充隨機生成整數的表的程序。大部分邏輯相對簡單,工作得很好。我想要做的一件事就是合計並打印出每列的總值,以及表格中所有值的最終總和。我曾四處搜尋試圖找到答案,但沒有找到答案。查找列中所有值的總和[RNG]
rowNbr = 7; // ROW CONTROLS
colNbr = 5; //COLUMN CONTROLS
rpt01 = String.format("%0" + (colNbr-1) + "d", 0).replace("0",dash); //Redefine rpt01
colBld = String.format("|---------------|%s\n",rpt01); //Redefine colBld
String cnrTxt = "First Quarter";
System.out.printf(colBld);
System.out.printf("|%-15s",cnrTxt);
for(int i = 1; i < colNbr; i = i++){ //Open for loop (columns)
String regTxt = "Region " + i++;
System.out.printf("|%-10s",regTxt);
} //End for
System.out.printf("|\n");
//Initialize array
int sales[] = new int[100];
int idx = 0;
for(int i = 1; i <= rowNbr-3; i++){
String prodTxt = "Product " + i;
System.out.printf(colBld);
System.out.printf("|%-15s|",prodTxt);
for(int j = 0; j < colNbr-1; j++){ //Open for loop (columns 2)
sales[idx] = (int)(Math.random() * 16 + 1);
System.out.printf("%-10d|",sales[idx]);
idx++;
} //End for
System.out.printf("\n");
} //End for
int totalNbr = 0; //Placeholder zero
int regNbr = 0; //Placeholder zero
String totalTxt = "Final Total: ";
String regTxt = "Region Totals";
System.out.printf(colBld);
System.out.printf("|%-15s|%-10s|\n",regTxt,regNbr);
System.out.printf(colBld);
System.out.printf("|%s%s\n",totalTxt,totalNbr);
System.out.printf(colBld);
這裏是代碼現在看起來像運行一次:
|---------------|----------|----------|----------|----------|
|First Quarter |Region 1 |Region 2 |Region 3 |Region 4 |
|---------------|----------|----------|----------|----------|
|Product 1 |2 |10 |3 |1 |
|---------------|----------|----------|----------|----------|
|Product 2 |15 |15 |7 |16 |
|---------------|----------|----------|----------|----------|
|Product 3 |15 |13 |7 |9 |
|---------------|----------|----------|----------|----------|
|Product 4 |4 |14 |11 |11 |
|---------------|----------|----------|----------|----------|
|Region Totals |0 |
|---------------|----------|----------|----------|----------|
|Final total: 0
|---------------|----------|----------|----------|----------|
老實說,不知道從哪裏即使有這樣的開始。任何幫助表示讚賞!