第一題:先將以下程式碼用記事本存成SearchNumber.java
開啟系統提示字元第一行輸入cd Desktop\JJJJ\sss\aaa
這是舉例，路徑改成你存的地方
第二行輸入javac SearchNumber.java
第三行輸入java SearchNumber
[code]import java.util.Scanner;

public class SearchNumber{
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
print("Please enter these numbers:");
String numbers=sc.nextLine();
Formula searchMax=new Formula(numbers);
print("The Max is: "+searchMax.answer);
}
public static void print(String s){
System.out.println(s);
}
}
class Formula{
int answer;
String formula;
public Formula(String formula){
this.formula=formula;
answer=calculate(this.formula);
}
private int calculate(String s){
answer=0;
StringBuffer sb = new StringBuffer(s);
while(sb.indexOf(" ")!=-1){//去除空白
sb.deleteCharAt(sb.indexOf(" "));
}
for(int i=0;i<sb.length();i++){
if(Integer.parseInt(sb.substring(i,i+1))>answer)//如果字串轉整數後較大，更改最大值
answer=Integer.parseInt(sb.substring(i,i+1));
}
return answer;
}
}[/code]




第二題:先將以下程式碼用記事本存成SearchNumber2.java
第二行輸入javac SearchNumber2.java
第三行輸入java SearchNumber2加空白鍵及你要輸入的字串陣列(ex:123 456 78 52 13 66)
[code]public class SearchNumber2{
public static void main(String[] args){
int max=0;
for(int i=0;i<args.length;i++){
if(Integer.parseInt(args[i])>max)
max=Integer.parseInt(args[i]);
}
print("The Max is: "+max);
}
public static void print(String s){
System.out.println(s);
}
}[/code]