基本输入输出
输入
输出
package com.ahabest.demo;
public class Test {
public static void main(String[] args) {
System.out.print("print\n");
System.out.printf("printf\n");
System.out.println("println");
}
}
Scanner类
package com.ahabest.demo;
import java.util.Scanner;
//next以空格结束判断
public class ScannerTest {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
if(sc.hasNext()) {
String st = sc.next();
System.out.println(st);
}
sc.close();
}
}
package com.ahabest.demo;
import java.util.Scanner;
//nextLine以回车结束判断
public class ScannerTest {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
if(sc.hasNextLine()) {
String st = sc.nextLine();
System.out.println(st);
}
sc.close();
}
}