public class Exam
{
public static void main(String[] args)
{
Map<String,String>m=new HashMap<String,String>()
String k
for(int i=1i<=3i++)
{
for(int j=1j<=3j++)
{
k=String.format("%d-%d",i,j)
m.put(k,"(空)")
System.out.printf("%s %s¡¢",k,m.get(k))
}
System.out.println()
}
System.out.println()
m.put("2-2","(满)")
m.put("3-3","(满)")
for(int i=1i<=3i++)
{
for(int j=1j<=3j++)
{
k=String.format("%d-%d",i,j)
System.out.printf("%s %s¡¢",k,m.get(k))
}
System.out.println()
}
}
}
你好，提问者：
package com.gc.action.baiduTestpublic class ErWeiDaYin {
public static void main(String[] args) {
int[][] number = new int[3][3]
show(number)
System.out.println("----------")
int[][] number1 = new int[5][4]
show(number1)
System.out.println("----------")
int[][] number2 = new int[6][2]
show(number2)
}
public static void show(int[][] number){
for(int i = 0 i < number.length i++){
for(int j = 0 j < number[i].length j++){
System.out.print("* ")
}
System.out.println()
}
}
} 结果：
* * *
* * *
* * *
----------
* * * *
* * * *
* * * *
* * * *
* * * *
----------
* *
* *
* *
* *
* *
* *
public class Rect {private int x private int y private int width private int height public int getX() {return x }public int getY() {return y }public int getWidth() {return width }public int getHeight() {return height }public Rect(int x,int y,int width,int height){this.x=x this.y=y this.width=width this.height=height }public void getArea(){System.out.println("面积："+this.width+"*"+this.height+"="+this.width*this.height) }public void print(){System.out.println("坐标点("+getX()+","+getY()+")") System.out.println("长："+getWidth()) System.out.println("宽："+getHeight()) } public static void main(String[] args){Rect rect=new Rect(50,50,100,50) rect.getArea() rect.print() }}
