Question

JAVA新手求助，简单的数组问题

要求：
定义一个一维数组，长度为9,要求从键盘输入9个数，对数组进行初始化，最后以三行三列形式输入。

public class array {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int a [] = new int [9];
InputStreamReader reader=new InputStreamReader(System.in);
BufferedReader input =new BufferedReader(reader);
for(int i=0;i<=a.length-1;i++)
{
a[i]=Integer.parseInt(reader.readLine());
}
for(int i=0;i<=a.length-1;i++)
{
if((i+1)%3==0)
System.out.print("\n");
System.out.print(a[i]);

}
}

}

Answer 1

import java.io.IOException;
import java.util.Scanner;
public class array {
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) {
int a [] = new int [9];
Scanner scan=new Scanner(System.in);
System.out.println("请输入数据");
for(int i=0;i<9;i++)
{
a[i]=scan.nextInt();
System.out.println("你输入的数据是"+a[i]);
}
for(int i=0;i<9;i++)
{
if(i%3==0){
System.out.print("\n");
}
System.out.print(a[i]+"\t");

}
}

}

Answer 2

import java.io.*;
public class array {
/**
* @param args
*/
public static void main(String[] args)throws Exception{
// TODO Auto-generated method stub
int a [] = new int [9];
InputStreamReader reader=new InputStreamReader(System.in);
BufferedReader input =new BufferedReader(reader);
for(int i=0;i<=a.length-1;i++)
{
a[i]=Integer.parseInt(input.readLine());
}
for(int i=0;i<=a.length-1;i++)
{
System.out.print(a[i]);
if((i+1)%3==0)
System.out.println();

}
}

}