添加文字空间或制表符:
public void displayCustomerInfo() { System.out.println(Name + " " + Income); // or a tab System.out.println(Name + "t" + Income);}
添加文字空间或制表符:
public void displayCustomerInfo() { System.out.println(Name + " " + Income); // or a tab System.out.println(Name + "t" + Income);}