package java1; public class Che { //属性 public String nub; public int speed; public double weight ; Che() { nub="XX1234"; speed=100; weight=100; } Che(String nub, int speed,double weight) { this.nub = nub; this.speed = speed; this.weight = weight…
package a; public class Jidongche { private String chepaihao; private int chesu; private double zaizhong; public String getChepaihao() { return chepaihao; } public void setChepaihao(String chepaihao) { this.chepaihao = chepaihao; } public int getChes…
int intA = 0;1.intA =int.Parse(str);2.int.TryParse(str, out intA);3.intA = Convert.ToInt32(str);以上都可以,其中 1和3 需要try{}异常,2不需要. //TryParse() Usage1: int number; bool result = Int32.TryParse(value, out number); // return bool value hint y/n if (result) {…
package homework006; public class Worker { private int age; private String name; private double salary; public Worker() { } public Worker(String name, int age, double salary) { this.name = name; this.age = age; this.salary = salary; } public int getA…
package homework003; import java.util.ArrayList; import java.util.List; public class Text { public static void main(String[] args) { List<Student> list = new ArrayList<>(); list.add(new Student("Tom",18,100,"class05")); lis…
List<string> 转 List<int> var list = (new[]{"1","2","3"}).ToList();var newlist = list.Select<string,int>(x =>Convert.ToInt32(x)); List<int> 转List<string> List<int> list = new List<int…
int to string #include<iostream> #include<string> using namespace std; int main() { string s; ]; ; itoa(m,c,); s=c; s.insert(,"zhang"); cout<<s<<endl; ; } string to int #include<iostream> #include<string> usin…
//Student package zuoye; public class Student { private String name; private int age; private int score; private String classNum; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { re…
String转int String str = "123"; int a = Integer.parseInt(str); System.out.println(a); Integer b = Integer.valueOf(str); System.out.println(b); int c = Integer.valueOf(str).intValue(); System.out.println(c); int转化为String int i = 123; String s = St…
将字串 String 转换成整数 int 两种方法: 1).int i = Integer.parseInt("111"); 或 i = Integer.parseInt([String],[int radix]); 2). int i = Integer.valueOf("111").intValue(); 其它 Double, Float, Long 的方法大同小异. 将整数 int 转换成字串 String A. 有3种方法: 1.) String s = S…
当遇到string向int类型转换时会遇到以下问题: 1.字符串非数字格式 2.字符串描述的不是int型 3.转换后越界 这些情况都需要用try catch来捕获异常并处理 安全简单的转换可以用 Int.TryParse(string s, out Int result); 返回值: 转换成功 result输出字符串代表的int数值,并返回true 转换失败result输出0 并返回false public class Program { public static int ConvertStr…