public class ForForTest {
public static void main(String[] args) {
method_1();
method_2();
method_3();
method_4();
method_5();
method_6();
method_7();
}
//打印矩形
public static void method_1(){
for(int i = 0 ;i<5;i++){
for(int j = 0; j<5;j++){
System.out.print("*");
}
System.out.println();
}
}
//打印倒直角三角形1
public static void method_2(){
for(int i = 0 ;i<5;i++){
for(int j = 0; j<5-i;j++){
System.out.print("*");
}
System.out.println();
}
}
//打印倒直角三角形2
public static void method_3(){
for(int i = 0 ;i<5;i++){
for(int j = i; j<5;j++){
System.out.print("*");
}
System.out.println();
}
}
//打印正直角三角形2
public static void method_4(){
for(int i = 0 ;i<5;i++){
for(int j = 0; j<=i;j++){
System.out.print("*");
}
System.out.println();
}
}
//打印倒三角数字1
public static void method_5(){
for(int i = 0 ;i<5;i++){
for(int j = 5; j>i;j--){
System.out.print(j);
}
System.out.println();
}
}
//打印倒三角数字2
public static void method_6(){
for(int i = 0 ;i<5;i++){
for(int j = 0; j<=i;j++){
System.out.print(i+1);
}
System.out.println();
}
}
//打印等腰三角形
public static void method_7(){
for (int i = 0; i < 5; i++) {
for(int k = 0; k < i; k++){
System.out.print(" ");
}
for (int j = i; j < 5; j++) {
System.out.print("* ");
}
System.out.println();
}
}
}
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