Initial Java,

James Goslin the father of Java.

Divided into three major areas: J2SE-ee J2ME

Two big platforms: JVM API

8 data Types integer floating-point character type Boolean class interface array

Generally used in addition to the back of the two

The program flow inside JAVA is now known to have if/else switch for while Do/while

For and while are judged before they are executed

General for use is more likely to be used will be more convenient

Here is a For loop example

Output 99 multiplication table

Package yuanzhoulv;

public class Dierti {
public static void Main (string[] args) {
int s;
for (int m=1;m<=9;m++) {
for (int n=1;n<=m;n++) {
S=m*n;
System.out.print (n+ "*" +m+ "=" +s);
System.out.print ("\ t");
}
System.out.print ("\ n");

}

}

}

Personally, I think it's amazing how the output looks.

1*1=1
1*2=22*2=4
1*3=32*3=63*3=9
1*4=42*4=83*4=124*4=16
1*5=52*5=103*5=154*5=205*5=25
1*6=62*6=123*6=184*6=245*6=306*6=36
1*7=72*7=143*7=214*7=285*7=356*7=427*7=49
1*8=82*8=163*8=244*8=325*8=406*8=487*8=568*8=64
1*9=92*9=183*9=274*9=365*9=456*9=547*9=638*9=729*9=81

Initial Java,