Java 方法将数组中的所有数字相加

我需要创建一个方法，将所有衣服、推顿、交通、食物、住房和书籍数组相加到这一点。 例如，打印输出必须如下所示

截至2011年11月4日的费用：

学费：3200美元

食品：2 600美元

衣服：600美元

书籍：450美元

费用总额：6 850美元

^这些数字是作为例子给出的，而不是我下面的数字

这是我的密码

public class Budget{

  ///////////////fields////////////////




  int clothes[]= {100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210};
  int tuition[] = {200, 200, 200, 200, 200, 200, 200, 200, 200, 200, 200, 200};
  int transportation[]={100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210};
  int food[]={80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80};
  int housing[]={150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150};
  int books[]= {200, 0, 0, 0, 0, 0, 0, 300, 0, 0, 0, 0};
    int i=0; // this is arbitrary. Never hard code numbers unless that number is never going to change. in that case you make a variable and define it.

  private int expenseName[][] = {clothes, tuition, transportation, food, housing, books};

/////////constructors///////////////
    public Budget() {}

  public Budget(int name) {this.expenseName[i][i] = name;}

    public Budget(int name[], int clothes, int tuition, int transportation, int food, int housing, int books)
    {
      this.expenseName[i] = name;
      this.clothes[i] = clothes;
      this.tuition[i] = tuition;
      this.transportation[i] = transportation;
      this.food[i] = food;
      this.housing[i] = housing;
      this.books[i] = books;
    }


 /////////////methods///////////
public int getexpenseName() {return expenseName[i][i];}

public int getclothes() {return clothes[i];}//change the I
public int gettuition() {return tuition[i];}
public int gettransporation() {return transportation[i];}
public int getfood() {return food[i];}
public int gethousing() {return housing[i];}
public int books() {return books[i];}

public void setExpenseName(int name)
{
  this.expenseName[i][i] = name;
}

---

这是对2D数组中的所有整数求和的代码

int sum = 0;
for (int[] a : expenseName) {
    for (int n : a) {
        sum += n;
    }
}

---

这真是糟糕的代码。首先，正确地缩进，其次，必须在类的顶部声明变量。请做这些事情，这样我们才能做出更好的反应。@DhaivatPandya也许一个不同的方法更合适？我们并非都是Java开发者的超级明星。您不必在顶部声明您的属性，这样做既传统又方便。虽然我同意原始代码是。。。次优的，看起来更像导师式的方法可能会更好。