u012575573的专栏

public class java5_1 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubbyte byte_max=Byte.MAX_VALUE;System.out.print("BYTE的最大值:"+byte_max);

public class java5_4 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stublong long_max=java.lang.Long.MAX_VALUE;System.out.println("LONG的最大值："+

public class java5_6 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubfloat float_max,float_min;double double_max,double_min;float_max=java

public class java5_12 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stublong long_min;System.out.println("long_min="+java.lang.Long.MIN_VALUE

public class java6_1 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint num=23,a,num1;System.out.println("第一次赋值后：num="+num);num1=num-3;S

public class java6_2 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubbyte a=java.lang.Byte.MAX_VALUE;boolean b=false;System.out.println("a

public class wen3 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("《Java从入门到精通》是学习Java的最佳宝典"); }}

public class java5_3 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint int_max=java.lang.Integer.MAX_VALUE;System.out.println("INT的最大值:"+

public class HelloWorld { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("HelloWorld!"); }}

public class java4_1 { static final int YEAR=365; /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("两年等于"+2*YEAR+"天")

public class java4_2 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub int num=3; char ch='z'; System.out.println(num+"是整数!");

public class java4_3 {static int a=1; /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubSystem.out.println("成员变量a的值为:"+a); }}

public class java5_2 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubshort short_max=Short.MAX_VALUE;System.out.println("SHORT的最大值："+short_

public class java5_5 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubfloat num=3.0f;System.out.println("num*num="+num*num);System.out.prin

public class java5_7 { /** * @param args */ public static void main(String args[]) { // TODO Auto-generated method stubchar ch1=97;char ch2='a';System.out.println("ch1="+ch1);System.out.p

public class java5_10 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=156;float b=24.1f;System.out.println("a="+a+",b="+b);System.o

public class java4_4 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint sum=0;for(int i=1;i<=5;i++){ sum=sum+i; System.out.println("i="

public class java5_8 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubchar ch='\"';System.out.println(ch+"测试转义字符"+ch);System.out.println("\

public class java5_9 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubboolean status=true;System.out.println("status="+status); }}

public class java6_7 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubfloat score=56.0f;if(score>100||score<0) System.out.println("false");

public class java6_4 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=5,b=3;System.out.println(a+"%"+b+"="+a%b);System.out.println(b+

public class java6_6 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=3,b=3;System.out.print("a="+a);System.out.println(",a++="+(a++)

public class java6_8 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=5,b=8;System.out.println("改变之前的数值是:a="+a+",b="+b);a+=b;System.

public class java6_9 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=10,b=6;System.out.println("改变之前的数:a="+a+",b="+b);a-=b++;System

public class java6_10 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=12345679,b=9;System.out.println("a*b="+a*b); }}

public class java6_11 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub int a=5,b=4;boolean t1=a>b;boolean t2=a==b;System.out.println("a>

public class java6_12 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubboolean t=(1+1==2)&&(1+2==3);System.out.println("(1+1==2)&&(1+2==3):"

public class java6_16 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=7;a=a*a;System.out.println("a*a=" + a); }}

public class java6_17 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=12345679,b=97654321;boolean c;a=a*9;b=b*3;c=a>b?true:false;

public class java7_8 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint i=0,sum=0;for(i=0;i<=10;i++) sum=sum+i;System.out.println("1到10的

public class java7_9 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint i,j,s;for(i=1;i<=9;i++){ for(j=1;j<=9;j++) { System.out.p

public class java6_5 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubif(5>2) System.out.println("返回值"+(5>2));if(true) System.out.println(

public class java7_1 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=6,b=5;System.out.println("a="+a+",b="+b);if(a>b) System.out.pr

public class java7_2 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=5;if(a%2==0) System.out.println(a+"是偶数!");else System.out.pr

public class java7_4 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=5,b=13,c;c=(a>b)?a:b;//if(a>b)//c=a;//else//c=b;System.out.

public class java7_10 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint i;for(i=1;i<=10;i++){ if(i%3==0) break; System.out.println("

public class java7_11 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint i=1;for(i=1;i<=10;i++){ if(i%3==0) continue; System.out.prin

public class java6_3 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint a=13,b=4;System.out.println("a="+a+",b="+b);System.out.println("a

public class java_13 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubboolean t=(1+1==2)? true:false; System.out.println("1+1==2:"+t); }}

public class java6_14 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stubint x=12345679,y=81,z;z=x*y;System.out.println("z=x*y="+z); }}