是System.out.print的java格式式樣

Question

System.out.println(tree.item +"\t\t\t"+tree.list); 

as   [26, 27, 38] 
associated   [1] 
at   [17, 18] 
attack  [10] 

但我想打印這樣

as   [26, 27, 38] 
associated [1] 
at   [17, 18] 
attack  [10] 

Answer 1

我沒有要訪問代碼，但我可以建議使用- 這意味着基本上留下了縮進

例子：

String[] item = new String[] { "Audi", "BMW", "VW", "Ferrari", "Cherry QQ" }; 
float[] price = new float[] { 18000.0f, 24000.0f, 2100.50f, 786400.1f, 120.70f }; 

for (int i = 0; i < price.length; i++) { 
    System.out.printf("%2d. %-10s €%.2f\n", i + 1, item[i], price[i]); 
} 

結果將目光左對齊像