public class TestJavaBean {
private String name;
public static void main(String[] args) {
TestJavaBean tjb = new TestJavaBean();
String str = tjb.getName();
System.out.println(str);
}
public void test(){
this.setName("xuyx");
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}}
private String name;
public static void main(String[] args) {
TestJavaBean tjb = new TestJavaBean();
String str = tjb.getName();
System.out.println(str);
}
public void test(){
this.setName("xuyx");
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}}
private String name;
public static void main(String[] args) {
TestJavaBean tjb = new TestJavaBean();
tjb.setName("john");
String str = tjb.getName();
System.out.println(str);
} public void test(){
this.setName("xuyx");
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}}
没有set当然就是null了
public class TestJavaBean {
private String name;
public static void main(String[] args) {
TestJavaBean tjb = new TestJavaBean();
tjb.test();
String str = tjb.getName();
System.out.println(str);
} public void test(){
this.setName("xuyx");
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}}
这样也行public class TestJavaBean {
private String name;
public static void main(String[] args) {
TestJavaBean tjb = new TestJavaBean();
String str = tjb.getName();
System.out.println(str);
} public TestJavaBean(){
this.setName("xuyx");
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}}
还有这样
要不手工调用一下,
要不弄成构造函数。
private String name;
public static void main(String[] args) {
TestJavaBean tjb = new TestJavaBean("yourName");
String str = tjb.getName();
System.out.println(str);
}
//构造
public TestJavaBean (String s) {
this.name = s;
}
public void test(){
this.setName("xuyx");
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}}加个带参数的构造器就可以了