로또번호만들기_java

직접 짠 코드

package kr.or.moonyoung;

public class lotto {
	public static void main(String[] args) {
		int lotto[]=new int[6];
		
		for(int i=0;i<6;i++) {
			lotto[i]=(int)(Math.random()*45)+1;
			System.out.println(lotto[i]);
		}
	}
}

 

https://nirsa.tistory.com/161

package kr.or.moonyoung;

public class lotto {
	public static void main(String[] args) {
		int lotto[] = new int[6];
		for(int i=0;i<6;i++) {
			lotto[i]=(int)(Math.random()*45)+1;
			
			for(int j=0;j<i;j++) {
				if(lotto[i]==lotto[j]) {
					i--;
					break;
				}
			}
		}
		System.out.println("로또번호:");
		for(int i=0;i<6;i++) {
			System.out.println(lotto[i]+"");
		}
	}
}

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중복값 제거

for(int j=0;j<i;j++) {
    if(lotto[i]==lotto[j]) {
        i--;
        break;
    }
}

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