Java uses nested loops to print rectangular triangular parallelogram, rhombic __java, respectively

public class Testqiantao {

/**
* Use nested loops to print rectangular triangular parallelogram diamonds separately
*/
public static void Main (string[] args) {
Printrect ();
Printsibianxing ();
Sanjiaxing ();
Lingxing ();
}

Print Rectangle
public static void Printrect () {
Outer loop output one line at a time *
for (int i = 1; I <= 5; i++) {
System.out.print ("*");
Inner loop output one at a time *
for (int j = 1; J <= 5; j +) {
System.out.print ("*");
}
System.out.println ();
}

}

Print a parallelogram
public static void Printsibianxing () {
Outer loop each time a *
for (int i = 1; I <=5; i++) {
Fill spaces
for (int j = 1; J <= 5-i; j) {
System.out.print ("");
}
Inner Loop prints one at a time *
for (int k = 1; k <= 5; k++) {
System.out.print ("*");
}
System.out.println ();
}
}



Print triangles
public static void Sanjiaxing () {
Outer loop control number of wheels (lines)
for (int i = 1; I <= 5; i++) {
for (int j = 0; J <= 5-i; j) {
System.out.print ("");
}
for (int k = 1; k <= 2 * i-1; k++) {
System.out.print ("*");
}
System.out.println ();
}
}


Print Diamond
public static void Lingxing () {
for (int i = 1; I <= 5; i++) {
for (int j = 0; J <= 5-i; j) {
System.out.print ("");
}
for (int k = 1; k <= 2 * i-1; k++) {
System.out.print ("*");
}
System.out.println ();
}

Print an inverted triangle
for (int m = 1; M <= 4; m++) {
Print spaces
for (int n = 0; n <= m; n++) {
System.out.print ("");
}
Print
for (int x = 1; <= 7-2 * (m-1); x + +) {
System.out.print ("*");
}
System.out.println ();
}

}
}