java输入输出
无空格的字符串输入
代码
import java.util.Scanner;
public class enter {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入字符串:");
String str = scanner.next();
System.out.println(str);
}
}
结果有点问题(遇到空格停止录入):
有空格的字符串的输入输出
整行录入
import java.util.Scanner;
public class enter {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入字符串:");
String str = scanner.nextLine();//换为nextLine()
System.out.println(str);
}
}
结果;
输入整型数字
import java.util.Scanner;
public class enter {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入整型:");
int str = scanner.nextInt();//换为nextInt()
System.out.println(str);
}
}
结果:
------------------------------------------
谢谢