day07-匿名对象的介绍
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package com.inmind.scanner01;
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import java.util.Scanner;
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/*
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常用类-Scanner-练习2_录入n个整数求最大值
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*/
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public class Demo03 {
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public static void main(String[] args) {
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//n可以手动赋值,也可以用户赋值
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Scanner sc = new Scanner(System.in);
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System.out.println("请输入要计算的整数个数:");
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int n = sc.nextInt();
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//获取n个整数值(for循环),保存到一个容器(数组)
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int[] arr = new int[n];
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//n次循环
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for (int i = 1; i <= n; i++) {
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System.out.println("请输入第"+i+"个整数");
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arr[i-1] = sc.nextInt();
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}
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//对容器中的值,取最大值
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int max = arr[0];
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for (int i = 0; i < arr.length; i++) {
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int temp = arr[i];
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if (temp > max) {
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max = temp;
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}
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}
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//打印结果
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System.out.println("您输入的"+n+"个整数的最大值为:"+max);
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}
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}
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22
day07/src/com/inmind/scanner01/Demo04.java
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22
day07/src/com/inmind/scanner01/Demo04.java
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package com.inmind.scanner01;
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import java.util.Scanner;
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/*
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匿名对象:没有名字的对象
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匿名对象的使用场景:当一个对象只要被使用一次的时候,可以使用匿名对象来简单实现
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*/
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public class Demo04 {
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public static void main(String[] args) {
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//只取一个整数时
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/*Scanner sc = new Scanner(System.in);
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int result = sc.nextInt();
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System.out.println(result);*/
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/*int result = new Scanner(System.in).nextInt();
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System.out.println(result);*/
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System.out.println(new Scanner(System.in).nextInt());
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}
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}
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