下面程序做一个响应键盘输入整数,当连续输入的数字3次为0的时候就跳出循环,如何解决?
为什么我的运行一输入数字就抛出异常呢?
import java.io.*;
public class test1
{
static InputStreamReader in;
static BufferedReader reader;
static
{in=new InputStreamReader(System.in);
reader=new BufferedReader(in);
}
static String readString()
{String s="";
try
{ s=reader.readLine(); } catch(IOException e)
{System.out.println(e);
System.exit(0);
}
return s;
}
static int readInt()
{String s=readString();
int i=0;
try{
i=Integer.parseInt(s);
}
catch(Exception e)
{System.out.println("输入的数据类型不对,程序将退出");
System.exit(0);
}
return i;
}
} class InoutData
{public static void main(String args[])
{
int a[][]=new int[4][5];
int[] bin=new int[20];
int k=0;
for(int i=0;i<2;i++)
for (int j=0;j<3;j++)
{
a[i][j] = test1.readInt();
bin[k]=a[i][j];
if(bin[k]==0||bin[k--]==0||bin[k-2]==0)
{
System.out.println("开始");
}
k++;
}
}
}
为什么我的运行一输入数字就抛出异常呢?
import java.io.*;
public class test1
{
static InputStreamReader in;
static BufferedReader reader;
static
{in=new InputStreamReader(System.in);
reader=new BufferedReader(in);
}
static String readString()
{String s="";
try
{ s=reader.readLine(); } catch(IOException e)
{System.out.println(e);
System.exit(0);
}
return s;
}
static int readInt()
{String s=readString();
int i=0;
try{
i=Integer.parseInt(s);
}
catch(Exception e)
{System.out.println("输入的数据类型不对,程序将退出");
System.exit(0);
}
return i;
}
} class InoutData
{public static void main(String args[])
{
int a[][]=new int[4][5];
int[] bin=new int[20];
int k=0;
for(int i=0;i<2;i++)
for (int j=0;j<3;j++)
{
a[i][j] = test1.readInt();
bin[k]=a[i][j];
if(bin[k]==0||bin[k--]==0||bin[k-2]==0)
{
System.out.println("开始");
}
k++;
}
}
}
~~~~~~~~~~~~~~
}
class InoutData
~~~~~~~~~~~~~~
}
class InoutData
~~~~~~~~~~~~~~
bin[k]==0||bin[k--]==0||bin[k-2]==0这里出问题了
import java.io.*;
public class test1
{
static InputStreamReader in;
static BufferedReader reader;
static
{
in=new InputStreamReader(System.in);
reader=new BufferedReader(in);
}
static String readString()
{
String s="";
try
{
s=reader.readLine();
}
catch(IOException e)
{
System.out.println(e);
System.exit(0);
}
return s;
}
static int readInt()
{
String s=readString();
int i=0;
try{
i=Integer.parseInt(s);
}
catch(Exception e)
{
System.out.println("Stype Error");
System.exit(0);
}
return i;
}
public static void main(String args[])
{
try
{
int a[][]=new int[4][5];
int[] bin=new int[20];
int k=0;
for(int i=0;i<2;i++) {
for (int j=0;j<3;j++)
{
a[i][j] = test1.readInt();
bin[k]=a[i][j];
System.out.println(bin[k]);
k++;
}
if(bin[k]==0||bin[k--]==0||bin[k-2]==0)
{
System.out.println("Start");
}
}
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
}