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public class JavaDemo01
{
public static void main(String args[])
{
int i = 10 ;
int j = 20 ;
int k = i % j ;
System.out.println(k) ;
}
};
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public class JavaDemo03
{
public static void main(String args[])
{
int i = 10 ;
// i++ ;
// ÒÔÉÏ´úÂëÏ൱ÓÚÒÔϵijÌÐò¶Î£º
// i = i + 1 ;
// ++i£º±íʾÏÈÈÃÊý¾Ý×ÔÔö£¬Ö®ºóÔÙ½øÐвÙ×÷
// i++£º±íʾÏÈÈÃÊý¾Ý½øÐвÙ×÷£¬²Ù×÷Íê³ÉÖ®ºó½øÐÐ×ÔÔö
int k = 10+(++i) ;
System.out.println(k) ;
System.out.println(i) ;
}
};
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public class JavaDemo04
{
public static void main(String args[])
{
int i = 10 ;
int j = 11 ;
System.out.println(i!=j) ;
}
};
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public class JavaDemo02
{
public static void main(String args[])
{
// ÅжÏÒ»¸öÊý×ÖÊÇ·ñÊÇżÊý
// żÊýµÄ×î´óÌØµã£º³ýÒÔ2ÓàÊýΪ0
int i = 21 ;
if(i%2==0)
{
System.out.println("ÊÇÒ»¸öżÊý¡£") ;
}
}
};
public class JavaDemo06
{
public static void main(String args[])
{
// ѧÉúÉÏѧµÄÄêÁäÔÚ5~7ËêÖ®¼ä
// Èç¹û³É¼¨ÔÚ90·Ö£¬»òÕßÄêÁäÔÚ7Ë꣬Ôò±íʾÊÇÒ»¸öѧÉú
int age = 6 ;
int score = 90 ;
// 5<=age>=7 : age>=5 age<=7
// boolean flag = age>=5&&age<=7 ;
boolean flag = age==7 | score==90 ;
System.out.println(flag) ;
}
};
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import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
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