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JAVA掛け算の九九の答えが全部表示されるようにしなさい

Last updated at Posted at 2015-10-09

▪️問1 掛け算の九九の答えが全部表示されるようにしなさい
▪️方法①

public static void test13() {
        for(int i = 1; i < 10; i++) {
            for(int j = 1; j < 10; j++) {
            int k = i * j;
            System.out.print(i + "×" + j + "=" + k);
            System.out.println("");

        }
            System.out.println("");
        }
    }

▪️方法②

public static void test12() {
        for(int i = 1; i < 10; i++) {
            for(int j = 1; j < 10; j++) {
            System.out.print(i + "×" + j + "=" + i * j);
            System.out.println("");

        }
            System.out.println("");
        }
    }

▪️方法①実行結果
Marimo-no-MacBook-Air:JAVA marimo$ java test21
1×1=1
1×2=2
1×3=3
1×4=4
1×5=5
1×6=6
1×7=7
1×8=8
1×9=9

2×1=2
2×2=4
2×3=6
2×4=8
2×5=10
2×6=12
2×7=14
2×8=16
2×9=18

3×1=3
3×2=6
3×3=9
3×4=12
3×5=15
3×6=18
3×7=21
3×8=24
3×9=27

4×1=4
4×2=8
4×3=12
4×4=16
4×5=20
4×6=24
4×7=28
4×8=32
4×9=36

5×1=5
5×2=10
5×3=15
5×4=20
5×5=25
5×6=30
5×7=35
5×8=40
5×9=45

6×1=6
6×2=12
6×3=18
6×4=24
6×5=30
6×6=36
6×7=42
6×8=48
6×9=54

7×1=7
7×2=14
7×3=21
7×4=28
7×5=35
7×6=42
7×7=49
7×8=56
7×9=63

8×1=8
8×2=16
8×3=24
8×4=32
8×5=40
8×6=48
8×7=56
8×8=64
8×9=72

9×1=9
9×2=18
9×3=27
9×4=36
9×5=45
9×6=54
9×7=63
9×8=72
9×9=81

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