Java language overview, java Overview

Java language overview, java Overview

I personally think that the foundation for learning programming languages is to learn from the demo.

Practice console output, System. out. println output line feed, System. out. print Output does not line feed.

Package com;
Public class Test {
Public static void main (String [] args ){
System. out. println ("hello, Tang Huimin. ");
System. out. println (args [0]);
System. out. println (args [1]);
}
}

Configuration Parameter args:

Running result:

Package com;
Public class Test {
Public static void main (String [] args ){
System. out. print ("hello, Tang Huimin. ");
System. out. print (args [0]);
System. out. print (args [1]);
}
}

Running result:

Output a triangle composed "*"

Package com;
Public class Test {
Public static void main (String [] args ){
System. out. println ("*");
System. out. println ("***");
System. out. println ("*****");
System. out. println ("*******");
}
}

Running result:

Output symbolic expression

Package com;
Public class Test {
Public static void main (String [] args ){
System. out. println ("zookeeper has failed ");
System. out. println ("{/o /}");
System. out. println ("(oo ))");
System. out. println ("zookeeper failed ("︶︶︶");
}
}

Result: