Output, Strings, Input
Output, Strings, Input
7 January 2019
OSU CSE
1
Simplest Java Program?
public class HelloWorld { public static void main(String[] args) { System.out.println("Hello World!"); }
}
7 January 2019
OSU CSE
2
Simplest Java Program?
public class HelloWorld {
public static void main(String[] args) {
System.opuutb.lpircinctllans(s"HdeeclllaroesWtohrisld!");
}
code to be a software component for which
}
bytecode should be
generated by the compiler;
HelloWorld is the name of
the class; details later.
7 January 2019
OSU CSE
3
Simplest Java Program?
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World!");
}
public static void is
}
required here when you want
a class to include a "main"
program that can be
executed by the JVM (and it
must be called main);
details later.
7 January 2019
OSU CSE
4
Simplest Java Program?
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World!");
}
String[] args means that
}
main expects the JVM to hand it
an array of Strings (called
command-line arguments)
when it is executed;
details later.
7 January 2019
OSU CSE
5
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