如何更改if語句以向後遍歷數組？

Question

如何向後遍歷數組？我需要對for聲明做些什麼？從長度減去一個

public static void main(String args[]) 
{ 
    int a[] = {0, 1, 2, 3}; 
    for (int i=1; i<=a.length; i++) 
    { 
     System.out.println("a[i] = " + a[i]); 
    } 
} 

Answer 1

開始並返回到零

for (int i = a.length -1; a >= 0; i--) 
{ 
    System.out.println("a[i] = " + a[i]); 
} 

Answer 2

在情況下，它大約遍歷數組倒退，你可以做這樣的

public static void main(String args[]) 
    { 
     int a[] = {0, 1, 2, 3}; 
     for (int i=a.length -1 ; i>=0; i--) 
     { 
      System.out.println("a[i] = " + a[i]); 
     } 
    } 
} 

輸出

a[i] = 3 
a[i] = 2 
a[i] = 1 
a[i] = 0