package select;
import java.util.Scanner;
import java.io.*;
public class SelectWhat
{
private Scanner scanner;
public SelectWhat()
{
int English=0,space=0,number=0;
System.out.println("Input(请输入一行字符包含中英文字母、空格、数字)");
scanner=new Scanner(System.in);
String str=scanner.nextLine();
for(int i=0;i<str.length();i++)
{
char temp=str.charAt(i);
if((temp>='a'&&temp<'z')||(temp>='A'&&temp<='Z'))
English++;
else if(temp>='0'&&temp<='9')
number++;
else if((int)temp==10)
space++;
}
System.out.println("中英文字母的个数为:"+English);
System.out.println("数字的个数为:"+number);
System.out.println("空格的个数为:"+space);
}
public static void main(String args[])
{
SelectWhat s=new SelectWhat();
}
}
空格怎么总是统计不出来,scanner.nextLine()总是跳过空格!
怎么才能统计出其中的空格啊?
import java.util.Scanner;
import java.io.*;
public class SelectWhat
{
private Scanner scanner;
public SelectWhat()
{
int English=0,space=0,number=0;
System.out.println("Input(请输入一行字符包含中英文字母、空格、数字)");
scanner=new Scanner(System.in);
String str=scanner.nextLine();
for(int i=0;i<str.length();i++)
{
char temp=str.charAt(i);
if((temp>='a'&&temp<'z')||(temp>='A'&&temp<='Z'))
English++;
else if(temp>='0'&&temp<='9')
number++;
else if((int)temp==10)
space++;
}
System.out.println("中英文字母的个数为:"+English);
System.out.println("数字的个数为:"+number);
System.out.println("空格的个数为:"+space);
}
public static void main(String args[])
{
SelectWhat s=new SelectWhat();
}
}
空格怎么总是统计不出来,scanner.nextLine()总是跳过空格!
怎么才能统计出其中的空格啊?
else if((int)temp==32)
space++;
import java.util.Scanner;
import java.io.*;
public class SelectWhat
{
private Scanner scanner;
public SelectWhat()
{
int English=0,space=0,number=0;
System.out.println("Input(请输入一行字符包含中英文字母、空格、数字)");
scanner=new Scanner(System.in);
String str=scanner.nextLine();
for(int i=0;i<str.length();i++)
{
char temp=str.charAt(i);
if((temp>='a'&&temp<'z')||(temp>='A'&&temp<='Z'))
English++;
else if(temp>='0'&&temp<='9')
number++;
else if(temp==" ".charAt(0))//改一下此处,就可以了
space++;
}
System.out.println("中英文字母的个数为:"+English);
System.out.println("数字的个数为:"+number);
System.out.println("空格的个数为:"+space);
}
public static void main(String args[])
{
SelectWhat s=new SelectWhat();
}
}
package select;
import java.util.Scanner;
import java.io.*;
public class SelectWhat
{
private Scanner scanner;
public SelectWhat()
{
int English=0,space=0,number=0;
System.out.println("Input(请输入一行字符包含中英文字母、空格、数字)");
scanner=new Scanner(System.in);
String str=scanner.nextLine();
for(int i=0;i<str.length();i++)
{
char temp=str.charAt(i);
if((temp>='a'&&temp<'z')||(temp>='A'&&temp<='Z'))
English++;
else if(temp>='0'&&temp<='9')
number++;
else if(temp==" ".charAt(0))//改一下此处,就可以了
space++;
}
System.out.println("中英文字母的个数为:"+English);
System.out.println("数字的个数为:"+number);
System.out.println("空格的个数为:"+space);
}
public static void main(String args[])
{
SelectWhat s=new SelectWhat();
}
}
public class NewDemo{ private BufferedReader bf = null;
private String str=""; public NewDemo()
{
int English=0,space=0,number=0;
System.out.println("Input(请输入一行字符包含中英文字母、空格、数字)");
try{
bf = new BufferedReader(new InputStreamReader(System.in));
str=bf.readLine();
}catch(Exception e){
e.printStackTrace();
}
for(int i=0;i<str.length();i++)
{
char temp=str.charAt(i);
if((temp>='a'&&temp<'z')||(temp>='A'&&temp<='Z'))
English++;
else if(temp>='0'&&temp<='9')
number++;
else if((int)temp==32)
space++;
}
System.out.println(str);
System.out.println("中英文字母的个数为:"+English);
System.out.println("数字的个数为:"+number);
System.out.println("空格的个数为:"+space);
}
public static void main(String args[])
{
NewDemo nd=new NewDemo();
}
}