摘要： public class Tom{int leg;Tom(int n){this.cry();leg=n;this.cry();}void cry(){ System.out.println("我是Tom,我现在有"+leg+"条腿");}public static void main(String args[]){Tom cat=new Tom(4);}} 阅读全文

摘要： class People{double getArea(double x,double y){return x*y;}int getArea(int x,double y){return(int)(x*y);}double getArea(float x,float y,float z){return(x*x+y*y+z*z)*2.0;}}public class Example4_10{public static void main(String arg[]){People zhang=new People() ;System.out.println("面积:"+zhan 阅读全文

摘要： class Tom{void f(int x,double y){x=x+1;y=y+1;System.out.printf("参数x和y的值分别是:%d,%3.2f\n",x,y);}}public class Example4_7{public static void main(String arg[]){int x=10;double y=12.58;Tom cat=new Tom();cat.f(x,y);System.out.printf("main方法中x和y的值仍然分别是：%d,%3.2f\n",x,y);}}class Jerry{int 阅读全文