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public String makeStars(int size, char ch) {
if(size < 1) {
throw new IllegalArgumentException("size must be greater than 0");
}
char[] chs = new char[size];
for(int i = 0; i < size; i++) {
chs[i] = ch;
}
return new String(ch);
}
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Map map = new HashMap();
Iterator it = map.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
Object key = e ......
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Tomcat
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apache-tomcat-5.5.17
Jdk
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jdk1.6.0_11
Mysql
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mysql-5.0.77-win32
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jdk
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JAVA_HOME
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C:\Program Files\Java\jdk1.6.0_11
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String s = new String("abc");
String s1 = "abc";
String s2 = new String("abc");
System.out.println(s == s1);
System.out.println(s == s2);
S ......
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import java.awt.Image;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.image.MemoryImageSource;
import javax.swing.JFrame;
public class HideCursor extends JFrame {
HideCursor() {
this.setBounds(300, 300, 300, 300);
&nb ......