OJ 输入读取方式

ScannerMain.java

import java.io.IOException;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) throws IOException {
    	// 直接读取多行数据
	Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            int a = sc.nextInt();
            int b = sc.nextInt();
		System.out.println(a + b);
	    }
	}
}


public static void main(String[] args) throws Exception {
	Scanner sc = new Scanner(System.in);
	while (sc.hasNext()) {
	    int n = sc.nextInt();  // 读取个数

	    for (int i = 0; i < n; i++) {
		double x = sc.nextDouble();
		double y = sc.nextDouble();
	   }       
}