如何用loadrunner编写java vuser脚本

在Eclipse中创建Sharp类，并添加一些属性和方法。
package com.lr.test;
public class Sharp {
public int size;
public String color;

public void triangle(int num3) {
for(int i=1; i<=num3; i++){
for(int k=1; k<=num3-i; k++) {
System.out.println(" ");
}
for(int j=1; j<=(i-1)*2+1; j++) {
if(i==1||j==num3) {
System.out.println("*");
}else {
if(j==1||j==(i-1)*2+1){
System.out.println("*");
}else{
System.out.println(" ");
}
}
}
}
System.out.println();
}

public int add(int num1, int num2) {
int result = num1 + num2;
return result;
}
}

在Loadrunner中开发测试脚本
import lrapi.lr;
import com.lr.test.Sharp;

public class Actions
{
public int init() throws Throwable {
return 0;
}//end of init
public int action() throws Throwable {
Sharp sharp = new Sharp();
sharp.size = 10;
sharp.color = "红色";
//使用Java输出方法输出
System.out.println("图形的尺寸为:"+sharp.size);
//使用loadrunner函数输出
lr.output_message("图形的颜色为: "+sharp.color);
//调用打印三角形的函数
sharp.triangle(5);
System.out.println("两个数的和是:"+sharp.add(3,5));
return 0;
}//end of action

public int end() throws Throwable {
return 0;
}//end of end
}