java打印几种不同排列方式的九九表

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public class NineNineBiao {

static int a;

public static void main(String[] args) {

NineNine1();
NineNine2();
NineNine3();
NineNine4();
NineNine5();
}

public static void NineNine1() {
for (int i = 1; i < 10; i++) {
for (int j = 1; j <= i; j++) {
if (i * j < 10) {
System.out.print(j + "*" + i + "= " + i * j + " ");
} else {
System.out.print(j + "*" + i + "=" + i * j + " ");
}

if (i == j) {
System.out.println();
}

}
}
System.out.println("第一个");
}

public static void NineNine2() {
for (int i = 9; i >= 1; i--) {
for (int j = 1; j <= i; j++) {
if (i * j < 10) {
System.out.print(j + "*" + i + "= " + i * j + " ");
} else {
System.out.print(j + "*" + i + "=" + i * j + " ");
}

if (i == j) {
System.out.println();
}

}
}
System.out.println("第二个");
}

public static void NineNine3() {
for (int i = 1; i < 10; i++) {
for (int k = 9; k > i; k--) {
System.out.print(" ");
}
for (int j = 1; j <= i; j++) {
if (i * j < 10) {
System.out.print(j + "*" + i + "= " + i * j + " ");
} else {
System.out.print(j + "*" + i + "=" + i * j + " ");
}

if (i == j) {
System.out.println();
}

}
}
System.out.println("第sans个");
}

public static void NineNine4() {
for (int i = 9; i >= 1; i--) {
a = 10 - i;
for (int k = 1; k < a; k++) {
System.out.print(" ");
}
for (int j = 1; j <= i; j++) {
if (i * j < 10) {
System.out.print(j + "*" + i + "= " + i * j + " ");
} else {
System.out.print(j + "*" + i + "=" + i * j + " ");
}

if (i == j) {
System.out.println();
}
}
}
System.out.println("第papyrus个");
}

public static void NineNine5() {
for (int i = 1; i < 10; i++) {
for (int k = 9; k > i; k--) {
System.out.print(" ");
}
for (int j = 1; j <= i; j++) {
if (i > j) {
if (i * j < 10) {
System.out.print(j + "*" + i + "= " + i * j + " ");
} else {
System.out.print(j + "*" + i + "=" + i * j + " ");
}
} else {
for (int a = i; a >= 1; a--) {
if (i * a < 10) {
System.out.print(a + "*" + i + "= " + i * a + " ");
} else {
System.out.print(a + "*" + i + "=" + i * a + " ");
}
}
}
}
for (int k = 9; k > i; k--) {
System.out.print('\t');
}
System.out.println();
}
System.out.println("第Toriel个");
}

}

NineNine1();

结果：

1*1= 1
1*2= 2 2*2= 4
1*3= 3 2*3= 6 3*3= 9
1*4= 4 2*4= 8 3*4=12 4*4=16
1*5= 5 2*5=10 3*5=15 4*5=20 5*5=25
1*6= 6 2*6=12 3*6=18 4*6=24 5*6=30 6*6=36
1*7= 7 2*7=14 3*7=21 4*7=28 5*7=35 6*7=42 7*7=49
1*8= 8 2*8=16 3*8=24 4*8=32 5*8=40 6*8=48 7*8=56 8*8=64
1*9= 9 2*9=18 3*9=27 4*9=36 5*9=45 6*9=54 7*9=63 8*9=72 9*9=81

NineNine2();

结果：

1*9= 9 2*9=18 3*9=27 4*9=36 5*9=45 6*9=54 7*9=63 8*9=72 9*9=81
1*8= 8 2*8=16 3*8=24 4*8=32 5*8=40 6*8=48 7*8=56 8*8=64
1*7= 7 2*7=14 3*7=21 4*7=28 5*7=35 6*7=42 7*7=49
1*6= 6 2*6=12 3*6=18 4*6=24 5*6=30 6*6=36
1*5= 5 2*5=10 3*5=15 4*5=20 5*5=25
1*4= 4 2*4= 8 3*4=12 4*4=16
1*3= 3 2*3= 6 3*3= 9
1*2= 2 2*2= 4
1*1= 1

NineNine3();

结果：

1*1= 1

1*2= 2 2*2= 4

1*3= 3 2*3= 6 3*3= 9

1*4= 4 2*4= 8 3*4=12 4*4=16

1*5= 5 2*5=10 3*5=15 4*5=20 5*5=25

1*6= 6 2*6=12 3*6=18 4*6=24 5*6=30 6*6=36

1*7= 7 2*7=14 3*7=21 4*7=28 5*7=35 6*7=42 7*7=49

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

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

NineNine4();

结果：

(排版很无奈)

NineNine5();

结果：

1*1= 1
1*2= 2 2*2= 4 1*2= 2
1*3= 3 2*3= 6 3*3= 9 2*3= 6 1*3= 3
1*4= 4 2*4= 8 3*4=12 4*4=16 3*4=12 2*4= 8 1*4= 4
1*5= 5 2*5=10 3*5=15 4*5=20 5*5=25 4*5=20 3*5=15 2*5=10 1*5= 5
1*6= 6 2*6=12 3*6=18 4*6=24 5*6=30 6*6=36 5*6=30 4*6=24 3*6=18 2*6=12 1*6= 6
1*7= 7 2*7=14 3*7=21 4*7=28 5*7=35 6*7=42 7*7=49 6*7=42 5*7=35 4*7=28 3*7=21 2*7=14 1*7= 7
1*8= 8 2*8=16 3*8=24 4*8=32 5*8=40 6*8=48 7*8=56 8*8=64 7*8=56 6*8=48 5*8=40 4*8=32 3*8=24 2*8=16 1*8= 8
1*9= 9 2*9=18 3*9=27 4*9=36 5*9=45 6*9=54 7*9=63 8*9=72 9*9=81 8*9=72 7*9=63 6*9=54 5*9=45 4*9=36 3*9=27 2*9=18 1*9= 9

(排版很无奈)

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