PGM->Java/繰り返し - プログラミングの勉強をしよう@Wiki

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繰り返し

for

import java.io.*;
 
class sample05{
    public static void main(String[] args){
 
        try{
            InputStreamReader isr = new InputStreamReader(System.in);
            BufferedReader br = new BufferedReader(isr);
 
            System.out.print("繰り返し回数=");
            String a = br.readLine();
            int b = Integer.parseInt(a);
 
            for(int i = 1; i <= b;i++){
                System.out.printf("%04d,", i);
            }
            System.out.println();
 
        }catch(Exception ex){
            ex.printStackTrace();
 
        }
    }
}
 

書式

for(初期値;継続条件;増分処理){
   testfunc();
}
 

while

import java.io.*;
 
class sample06{
    public static void main(String[] args){
 
        try{
            InputStreamReader isr = new InputStreamReader(System.in);
            BufferedReader br = new BufferedReader(isr);
 
            System.out.print("繰り返し回数=");
            String a = br.readLine();
            int b = Integer.parseInt(a);
 
            int i = 1;
            while(i <= b){
                System.out.printf("%04d,", i);
                i++;
            }
 
        }catch(Exception ex){
            ex.printStackTrace();
 
        }
    }
}
 

書式

while(継続条件){
   testfunc();
}
 

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