JAVA上机之一维数组和二维数组 第2页
Test1:
package fox.math.kmust;
public final class Test1 {
private static void print(Object obj) {
if(obj==null){
System.out.println("null");
return;
}
if (Object[].class.isInstance(obj)) {
for (Object temp : (Object[]) obj) {
print(temp);
}
return;
}
if (String.class.isInstance(obj)) {
String temp=(String) obj;
System.out.println(temp+"\t--Lower Case--\t"+temp.toLowerCase());
} else {
System.out.println(obj.toString());
}
}
public static void main(String[] args){
String[] stringArray1[]=new String[2][];
stringArray1[0]=new String[13];
stringArray1[1]=new String[13];
for(int i=0,j=stringArray1[0].length;i<j;i++){
stringArray1[0][i]=((char)('A'+i))+"";
stringArray1[1][i]=((char)('A'+i+13))+"";
}
print(stringArray1);
}
}
Test2:
package fox.math.kmust;
public class Test2 {
private static class Rectangle {
private double length = 0.0;
private double width = 0.0;
public Rectangle(double length, double width) {
if (length < 0) {
length = 0.0;
}
if (width < 0) {
width = 0.0;
}
this.length = length;
this.width = width;
}
public double getArea() {
return length * width;
}
public Rectangle() {
}
public double getGirth() {
return 2 * (length + width);
}
}
public static void main(String[] args) {
Rectangle rectangle = new Rectangle(2.0, 4.0);
System.out.printf("Area:%
System.out.printf("Girth:%
}
}
Test3:
package fox.math.kmust;
public class Test3 {
private static class Circle {
private double radius = 0.0;
public Circle() {
}
public double getArea() {
return Math.PI * radius * radius;
}
public Circle(double radius) {
if (radius < 0) {
radius = 0.0;
}
this.radius = radius;
}
public double getGirth() {
return 2 * Math.PI * radius;
}
}
public static void main(String[] args) {
Circle circle = new Circle(3.0);
System.out.printf("Area:%
System.out.printf("Girth:%
}
}