Question

用java在控制台输入一个字符串比如123输出的时候变成1 2 3

Answer 1

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;public class DataTest{
public static void main(String []args) throws IOException{
String string = "";
BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
String str = bf.readLine();
for(int i = 0; i < str.length(); i++){
string = string + str.charAt(i) + " ";
}
System.out.println(string);
}
}

Answer 2

Scanner input=new Scanner(System.in);
String a=input.next(); String b=""; for(int i=0;i<a.length();i++){
b+=a.substring(i,i+1)+" ";
}
System.out.println(b);

Answer 3

输出的类型是什么？

Answer 4

字符串 ？ 还是 数字 ？

Answer 5

import java.util.Scanner;
/**
*
* @author Zxy
*/
public class Test_004 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String str = sc.next();
char [] cha = getNum(str);
for (int i = 0; i < cha.length; i++) {
System.out.print(cha[i]+" ");
}
}
static char [] getNum(String str){
char [] chr = new char[str.length()];
str.getChars(0, str.length(), chr, 0);
return chr;
}
}