(for문)자바로 별 찍기

Purpose

• Print star patterns using for loop
• Print various star patterns

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Basic star pattern

public class study {
    public static void main(String[] args) {

        for (int i = 0; i < 5; i++) {
            for (int j = 0; j < 10; j++) {
                System.out.print("*");
            }
            System.out.println("");
        }
    }
}

 

• Used nested for loops (two for loops)
• Used println for change line

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Triangle start pattern

public class study {
    public static void main(String[] args) {

        for(int i=1;i<=5;i++) {
            for(int j=1;j<=i;j++) {
                System.out.print("*");
            }
            System.out.println("");
        }
    }
}

 

• put 'i' as conditional statement

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All these examples are coming from '자바의 정석 기초편'.