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public   class   Test{  
          public   static   void   main(String   args[]){  
                  System.out.println(0.05+0.01);  
                  System.out.println(1.0-0.42);  
                  System.out.println(4.015*100);  
                  System.out.println(123.3/100);  
          }  
};  
   
ÄãûÓп´´í£¡½á¹ûȷʵÊÇ  
0.060000000000000005  
0.5800000000000001  
401.49999999999994  
1.2329999999999999  
   
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public class HelloWorldApp { //an application
public static void main (String args[ ]){
System.out.println("Hello World!");
}
}
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import java.util.Date;
class Dog{
 private String name;
 private Date birthday;
 
 
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public Date getBirthday() {
  return b ......

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public static void reduceImg(String imgsrc, int widthdist, int heightdist) {
  try {
   File srcfile = new File(imgsrc);
   if (!srcfile.exists()) {
    return;
   }
    ......

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MyBean bean = new MyBean();
String name = bean.getName();
out.println(name);
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