内存调用分析例题
class BirthDate{
private int day;
private int month;
private int year;
public BirthDate(int d, int m, int y){
day = d;
month = m;
year = y;
}
public void setDay(int d ){
day = d;
}
public void setMonth(int m){
month = m;
}
public void setYear(int y){
year = y;
}
public int getDay(){
return month;
}
public int getMonth(){
return month;
}
public int getYear(){
return year;
}
public void display(){
System.out.println
(day + "-" + month + "-" + year);
}
}
public class Test{
public static void main (String args []){
Test test = new Test();
int date = 9;
BirthDate d1= new BirthDate(7,7,1970);
BirthDate d2= new BirthDate(1,1,2000);
test.change1(date);
test.change2(d1);
test.change3(d2);
System.out.println("date=" + date);
d1.display();
d2.display();
}
public void change1(int i){
i= 1234;
}
public void change2(BirthDate b){
b = new BirthDate(22,2,2004);
}
public void change3(BirthDate b){
b.setDay(22);
}
}

public class TOF{
public static void main(String args[]){
int i = 1 , j = 2;
boolean flag1,flag2;
flag1 = (i>3)&&((i+j)>5);
System.out.println(flag1);
flag2 = (i<2)||((i+j)<6);
System.out.println(flag2);
}
}

1+3+5+7+9+...+99 的写法
while语句
public class Add{
public static void main(String args []){
int i = 1;
int x = 0;
do {
x=x+i;
i+=2;
}
while (i<=99);
System.out.println(x);
}
}

1+3+5+7+9+...+99 的写法
while语句
public class Add{
public static void main(String args []){
int i = 1;
int x = 0;
do {
x=x+i;
i+=2;
}
while (i<=99);
System.out.println(x);
}
}

1+3+5+7+9+...+99 的写法
for语句
for语句1
public class AddFor1{
public static void main (String args []){
long f=0;
long result=0;
for (int i = 1 ; i <= 99 ; i+=2){
result=f+ i;
f=result;
}
System.out.println("result = " + result);
}
}
for语句 2
public class AddFor2{
public static void main (String args []){
long result=0;
for (int i = 1 ; i <= 99 ; i+=2){
result=result+ i;
}
System.out.println("result = " + result);
}
}

断更五天

断更24天

fighting………………

支持楼主

楼主能加我Q么？97014247

断更31天！！！