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import java.text.DecimalFormat;
public class Main {
/**
* ÏÔʾJVM×ÜÄڴ棬JVM×î´óÄÚ´æºÍ×Ü¿ÕÏÐÄÚ´æ
*/
public void displayAvailableMemory() {
DecimalFormat df = new DecimalFormat(¡°0.00¡å) ;
//ÏÔʾJVM×ÜÄÚ´æ
long totalMem = Runtime.getRuntime().totalMemory();
System.out.println(df.format(totalMem 1000000F) + ¡± MB¡±);
//ÏÔʾJVM³¢ÊÔʹÓõÄ×î´óÄÚ´æ
long maxMem = Runtime.getRuntime().maxMemory();
System.out.println(df.format(maxMem 1000000F) + ¡± MB¡±);
//¿ÕÏÐÄÚ´æ
long freeMem = Runtime.getRuntime().freeMemory();
System.out.println(df.format(freeMem 1000000F) + ¡± MB¡±);
}
/**
* Starts the program
*
* @param args the command line arguments
*/
public static void main(String[] args) {
new Main().displayAvailableMemory();
}
}