尚学堂第七章授業後のコード問題
18786 ワード
練習問題
/**
*
* @author WCS
*
*
*/
public class TT {
public static void main(String args[]){
String[] Str = {"a","ab","abc","abcd","abcde","abcdef","abcdefg","abcdefgh","aa","bb"};
Scanner Input = new Scanner (System.in);//
System.out.print(" :");
String str2 = Input.nextLine();//
System.out.println(" :"+ str2);
System.out.println(" :"+Search(Str,str2));
}
/**
*
* @param Arrays
* @param S
* @return String
*/
public static String Search(String[] Arrays, String S){
for(int i=0;i <Arrays.length;i++){
if(Arrays[i].equals(S)){//
return "YES";// YES
}
}
return "NO";// NO
}
}
ヒント:int num=(int)(n*Math.random()を使用します.乱数を取得します.
public class TT {
public static void main(String args[]){
int [] Str= new int [50];// 50
int max_1 = 0,min_1 = 0,value_1 = 0;// 60
for(int i= 0;i<50;i++){//
Str[i] = (int)(100*Math.random());//
}
System.out.println(Arrays.toString(Str));
math(Str,max_1,min_1,value_1);// ,
}
/**
*
* @param Arrays
* @param max
* @param min
* @param value 60
*/
public static void math (int[] Arrays,int max, int min,int value){
for(int i=0;i<Arrays.length;i++){
if(Arrays[i]>max){
max = Arrays[i];
}
if(Arrays[i]<min){
min = Arrays[i];
}
if(Arrays[i]>=60){
value++;
}
}
System.out.println(" :"+max);
System.out.println(" :"+min);
System.out.println(" 60 :"+value+" ");
}
}
public class TT {
public static void main(String args[]){
int [] S= {1,2,3,4,5,6,7,8,9,10,11};// 10
System.out.println(" :"+Arrays.toString(Exchange(S)));
}
/**
*
* @param Arrys
* @return
*/
public static int[] Exchange (int[] Arrys){
int mid=0,temp1=0;
mid = Arrys.length/2-1;//
System.out.println(mid);
for(int i=0;i<=mid;i++){// .
temp1= Arrys[i];
Arrys[i]= Arrys[Arrys.length-1-i];
Arrys[Arrys.length-1-i]= temp1;
}
return Arrys;
}
}