PAT_B_1011_Java(15分)

新进API

.valueOf() 返回给定参数的原生 Number 对象值
.split("\\s+") 将输入流中的各个元素由多个空格分隔开

解题思路:

  1. 输入字符串,并将其转换为长整型(原始代码使用int定义x,y,z部分正确(9分))
  2. 进行大小比较并输出

源代码如下:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;

public class Main {

	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
		int a = Integer.parseInt(bf.readLine());
		int count = 1;
		for (int i = 0; i < a; i++) {
			String[] bufStrings = bf.readLine().split("\\s+");
			long x = Long.valueOf(bufStrings[0]);
			long y = Long.valueOf(bufStrings[1]);
			long z = Long.valueOf(bufStrings[2]);
			if ((x + y) > z) {
				System.out.printf("Case #%d: true", count);
				System.out.println();
			} else {
				System.out.printf("Case #%d: false", count);
				System.out.println();
			}
			count++;
		}
	}
}
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class B_1011 {
    public static void main(String[] args) throws IOException {
        BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
        int a = Integer.parseInt(bf.readLine());
        StringBuilder sb = new StringBuilder("");
        for (int i = 1; i < a + 1; i++) {
            String[] str = bf.readLine().split(" ");
            if ((Long.parseLong(str[0]) + Long.parseLong(str[1])) > Long.parseLong(str[2]))
                sb.append("Case #" + i + ": true\n");
            else
                sb.append("Case #" + i + ": false\n");
        }
        System.out.println(sb.toString().trim());
    }
}

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