Question

有数组a[n]用java代码将数组元素顺序颠倒

Answer 1

public static void main(String[] args) {
//String a[] = new String[12];
String a[] = new String[11];
// 赋值a[n]
System.out.print("a[n]元素初始值依次为：");
for (int i = 0; i < a.length; i++) {
a[i] = String.valueOf(i);
System.out.print(a[i] + " ");
}
System.out.println(""); // 换行
int length = a.length;
// a[n]元素顺序倒转
System.out.print("a[n]元素倒转后依次为：");
for (int i = 0; i < length/2; i++) {
String tmp = a[i];
a[i]=a[length-1-i];
a[length-1-i]=tmp;
}
for (int i = 0; i < a.length; i++) {
System.out.print(a[i] + " ");
}
}

Answer 2

楼主你好！
输出时倒叙输出就OK了！
for(int i=(n-1);i>=0;i--)
{
System.out.print(a[i]+",") ;
}